Weitere ähnliche Inhalte Ähnlich wie Nitrogen Cycle Lesson PowerPoint, Environment, Ecosystem, Biogeochemical Cycles (20) Mehr von www.sciencepowerpoint.com (20) Kürzlich hochgeladen (20) Nitrogen Cycle Lesson PowerPoint, Environment, Ecosystem, Biogeochemical Cycles1. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
3. • Lab activity link (Optional) The Effect of
Acid Rain on Seed Growth. (Begin Today)
– http://serc.carleton.edu/sp/mnstep/activities/356
85.html
4. • This will be the big concept in ecology that
will be addressed in this portion of the unit.
– or artificial.
5. • This will be the big concept in ecology that
will be addressed in this portion of the unit.
– or artificial.
6. • This will be the big concept in ecology that
will be addressed in this portion of the unit.
– Note: The cycles that we will learn move between
the living and non-living world. r artificial.
8. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
9. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
10. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
11. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
12. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
13. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
14. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
15. • What will be studying a whole lot of in the
next few days?
Copyright © 2010 Ryan P. Murphy
16. • Yes, We will be studying concepts that
have a lot to do with waste.
Copyright © 2010 Ryan P. Murphy
21. • Video! The goal will be to try and make some
sense out this confusing video.
Copyright © 2010 Ryan P. Murphy
22. • Video! The goal will be to try and make some
sense out this confusing video.
– We will watch it again at the end of class to see if
we understand any of it. It’s wacky.
Copyright © 2010 Ryan P. Murphy
23. • Video! The goal will be to try and make some
sense out this confusing video.
– We will watch it again at the end of class to see if
we understand any of it. It’s wacky.
– http://www.youtube.com/watch?v=tSzLQojOItg&f
eature=iv&src_vid=Hghru0O7dDs&annotation_id
=annotation_151343
Copyright © 2010 Ryan P. Murphy
24. • Everyone take a deep breath in and then
breathe out.
– 78% of what you just breathed in was Nitrogen
N2 gas
– 78% of what you exhaled was… Nitrogen N2
gas.
Copyright © 2010 Ryan P. Murphy
25. • Everyone take a deep breath in and then
breathe out.
– 78% of what you just breathed in was Nitrogen
N2 gas
– 78% of what you exhaled was… Nitrogen N2
gas.
Copyright © 2010 Ryan P. Murphy
26. • Everyone take a deep breath in and then
breathe out.
– 78% of what you just breathed in was Nitrogen
N2 gas
– 78% of what you exhaled was… Nitrogen N2
gas.
Copyright © 2010 Ryan P. Murphy
27. • Everyone take a deep breath in and then
breathe out.
– 78% of what you just breathed in was Nitrogen
N2 gas
– 78% of what you exhaled was… Nitrogen N2
gas.
Copyright © 2010 Ryan P. Murphy
28. • Nitrogen in the atmosphere is N2 gas which is
doesn’t bond well with other molecules.
Copyright © 2010 Ryan P. Murphy
29. • Nitrogen in the atmosphere is N2 gas which is
doesn’t bond well with other molecules.
– Nitrogen forms triple bonds with itself.
Copyright © 2010 Ryan P. Murphy
30. • Nitrogen in the atmosphere is N2 gas which is
doesn’t bond well with other molecules.
– Nitrogen forms triple bonds with itself.
Copyright © 2010 Ryan P. Murphy
31. • Nitrogen in the atmosphere is N2 gas which is
doesn’t bond well with other molecules.
– Nitrogen forms triple bonds with itself.
Copyright © 2010 Ryan P. Murphy
32. • Nitrogen in the atmosphere is N2 gas which is
doesn’t bond well with other molecules.
– Nitrogen forms triple bonds with itself.
Copyright © 2010 Ryan P. Murphy
33. • When nitrogen is “fixed”, it’s bonds are split with the
other nitrogen. Now it has three arms to make new
friends,
Copyright © 2010 Ryan P. Murphy
34. • When nitrogen is “fixed”, it’s bonds are split with the
other nitrogen. Now it has three arms to make new
friends like oxygen.
Copyright © 2010 Ryan P. Murphy
35. • When nitrogen is “fixed”, it’s bonds are split with the
other nitrogen. Now it has three arms to make new
friends like oxygen.
Copyright © 2010 Ryan P. Murphy
36. • When nitrogen is “fixed”, it’s bonds are split with the
other nitrogen. Now it has three arms to make new
friends like oxygen (NO2)
Bacteria
Copyright © 2010 Ryan P. Murphy
37. • Rain and precipitation bring the atmospheric
Nitrogen to the ground.
38. • Rain and precipitation bring the atmospheric
Nitrogen to the ground.
39. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
40. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
41. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
42. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
43. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
44. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
45. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
46. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
47. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
48. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
49. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
50. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
51. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
52. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
53. • Nitrogen fixing bacteria in the soil and on the
root nodules of plants can fix the nitrogen.
– Fix means change its form so a plant can use it.
54. • Plants can now use this new molecule to get the
nitrogen they need to build proteins so they can
grow, repair, and reproduce.
Copyright © 2010 Ryan P. Murphy
Oxygen
55. • Plants can now use this new molecule to get the
nitrogen they need to build proteins so they can
grow, repair, and reproduce.
– With the help of nitrogen fixing bacteria
Copyright © 2010 Ryan P. Murphy
Oxygen
56. • Plants can now use this new molecule to get the
nitrogen they need to build proteins so they can
grow, repair, and reproduce.
– With the help of nitrogen fixing bacteria
Copyright © 2010 Ryan P. Murphy
Oxygen
57. • Plants can now use this new molecule to get the
nitrogen they need to build proteins so they can
grow, repair, and reproduce.
– With the help of nitrogen fixing bacteria
Copyright © 2010 Ryan P. Murphy
Oxygen
58. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
59. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
60. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
61. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
62. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
63. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
64. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
65. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
66. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
67. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
69. • When plants and animals die.
– Nitrifying bacteria break down the nitrogen in
their tissues. (Nitrites NO2)
70. • When plants and animals die.
– Nitrifying bacteria break down the nitrogen in
their tissues. (Nitrites NO2)
71. • When plants and animals die.
– Nitrifying bacteria break down the nitrogen in
their tissues. (Nitrites NO2)
73. • When the nitrogen is denitrified, it then bonds with
another nitrogen to form inert N2 gas in the
atmosphere until the cycle repeats.
Copyright © 2010 Ryan P. Murphy
74. • When the nitrogen is denitrified, it then bonds with
another nitrogen to form inert N2 gas in the
atmosphere until the cycle repeats.
“We now get to
hang out in the
atmosphere for
a long time.”
Copyright © 2010 Ryan P. Murphy
75. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
76. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
77. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
78. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
79. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
80. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
81. • All life requires nitrogen-compounds, e.g.,
proteins and nucleic acids.
• Air, which is 79% nitrogen gas (N2), is the major
reservoir of nitrogen.
• But most organisms cannot use nitrogen in this
form.
• Plants must secure their nitrogen in "fixed" form,
i.e., incorporated in compounds such as:
– nitrate ions (NO3−)
– ammonia (NH3)
– urea (NH2)2CO
• Animals secure their nitrogen (and all other)
compounds from plants (or animals that have
fed on plants).
Copyright © 2010 Ryan P. Murphy
82. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Nitrification: Plants with bacteria take up
nitrogen.
– Decay: Passes on through eating / waste.
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
83. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Nitrification: Plants with bacteria take up
nitrogen.
– Decay: Passes on through eating / waste.
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
84. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Nitrification: Plants with bacteria take up
nitrogen.
– Decay: Passes on through eating / waste.
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
85. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Nitrification: Plants with bacteria take up
nitrogen.
– Decay: Passes on through eating / waste.
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
86. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Plants with the help of bacteria take up nitrogen.
– Decay: Passes on through eating / waste.
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
87. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Plants with the help of bacteria take up nitrogen.
– Decay and waste passes on nitrogen
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
88. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Plants with the help of bacteria take up nitrogen.
– Decay and waste passes on nitrogen
– Denitrification: Nitrogen returned to the air by
bacteria.
Copyright © 2010 Ryan P. Murphy
89. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Plants with the help of bacteria take up nitrogen.
– Decay and waste passes on nitrogen
– Denitrification: Nitrogen returned to the air by
bacteria.
Copyright © 2010 Ryan P. Murphy
90. • Four processes participate in the cycling of
nitrogen through the biosphere:
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Plants with the help of bacteria take up nitrogen.
– Decay and waste passes on nitrogen
– Denitrification: Nitrogen returned to the air by
bacteria.
• Happens with poor soil management.
Copyright © 2010 Ryan P. Murphy
91. • This is an example of poor soil conservation
methods which leads to soil nutrient depletion.
Copyright © 2010 Ryan P. Murphy
92. • This is an example of poor soil conservation
methods which leads to soil nutrient depletion.
– The lost nitrogen in this runoff will be denitrified by
bacteria back to the atmosphere .
Copyright © 2010 Ryan P. Murphy
93. • This is an example of poor soil conservation
methods which leads to soil nutrient depletion.
– The lost nitrogen in this runoff will be denitrified by
bacteria back to the atmosphere .
Copyright © 2010 Ryan P. Murphy
94. • Manmade fertilizers also puts nitrogen into
the soil. (Ammonia NH3)
Copyright © 2010 Ryan P. Murphy
95. • Manmade fertilizers also puts nitrogen into
the soil. (Ammonia NH3)
–Excess / poor management of nitrogen
can result in pollution.
Copyright © 2010 Ryan P. Murphy
96. • Manmade fertilizers also puts nitrogen into
the soil. (Ammonia NH3)
–Excess / poor management of nitrogen
can result in pollution.
Copyright © 2010 Ryan P. Murphy
97. • Manmade fertilizers also puts nitrogen into
the soil. (Ammonia NH3)
–Excess / poor management of nitrogen
can result in pollution.
Copyright © 2010 Ryan P. Murphy
99. • Activity! Step by step drawing of the
Nitrogen Cycle.
Copyright © 2010 Ryan P. Murphy
129. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
130. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
131. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
132. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
133. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
134. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
Denitrifying
bacteria
release Nitrogen
into air. (N2)
135. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
Denitrifying
bacteria
release Nitrogen
into air. (N2)
136. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
Denitrifying
bacteria
release Nitrogen
into air. (N2)
Air pollution releases nitrogen into atmosphere
137. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
Denitrifying
bacteria
release Nitrogen
into air. (N2)
Air pollution releases nitrogen into atmosphere
138. Lightning can
convert
And nitrogen mixes
with rain
Bacteria fix
nitrogen into NH3,
NO2-, NO3-
Animals get nitrogen by
eating plants
Decomposers break down nitrogen
Nitrites NO2 and Nitrates NO3
Denitrifying
bacteria
release Nitrogen
into air. (N2)
Air pollution releases nitrogen into atmosphere Fertilizersr
139. • Excess free nitrogen in the atmosphere can cause
acid rain which damages forests and lakes.
Copyright © 2010 Ryan P. Murphy
140. • Nitrogen in atmosphere is inert (N2 Gas)
which is not reactive. (Can’t use)
– Bacteria on plant roots convert nitrogen in
atmosphere into
• nitrate ions (NO3−) (NO2-)
• ammonia (NH4)
Copyright © 2010 Ryan P. Murphy
141. • Nitrogen in atmosphere is inert (N2 Gas)
which is not reactive. (Can’t use)
– Bacteria on plant roots convert nitrogen in
atmosphere into
• nitrate ions (NO3−) (NO2-)
• ammonia (NH4)
Copyright © 2010 Ryan P. Murphy
142. • Plants now have usable nitrogen.
Copyright © 2010 Ryan P. Murphy
143. • Plants now have usable nitrogen.
• Animals get nitrogen from eating plants.
Copyright © 2010 Ryan P. Murphy
144. • Plants now have usable nitrogen.
• Animals get nitrogen from eating plants.
• Animals and plants release nitrogen in
waste such as urea (NH2)2CO and death.
Copyright © 2010 Ryan P. Murphy
145. • Plants now have usable nitrogen.
• Animals get nitrogen from eating plants.
• Animals and plants release nitrogen in
waste such as urea (NH2)2CO and death.
• Bacteria break down nitrogen and release
it back into air as N2 Gas. (Denitrification).
Copyright © 2010 Ryan P. Murphy
146. • Four processes participate in the cycling of
nitrogen through the biosphere.
Copyright © 2010 Ryan P. Murphy
147. • Four processes participate in the cycling of
nitrogen through the biosphere.
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
Copyright © 2010 Ryan P. Murphy
148. • Four processes participate in the cycling of
nitrogen through the biosphere.
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Decay: Passes on through eating / waste.
Copyright © 2010 Ryan P. Murphy
149. • Four processes participate in the cycling of
nitrogen through the biosphere.
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Decay: Passes on through eating / waste.
– Nitrification: Plants with bacteria take up nitrogen.
Copyright © 2010 Ryan P. Murphy
150. • Four processes participate in the cycling of
nitrogen through the biosphere.
– Nitrogen fixation: Break apart N2 so it can join to
other atoms and be used.
– Decay: Passes on through eating / waste.
– Nitrification: Plants with bacteria take up nitrogen.
– Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
152. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen is removed from air.
Copyright © 2010 Ryan P. Murphy
153. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen is removed from air.
Copyright © 2010 Ryan P. Murphy
154. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen is removed from air.
Copyright © 2010 Ryan P. Murphy
155. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen is returned to the air.
Copyright © 2010 Ryan P. Murphy
157. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart NO3 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
158. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart NO3 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
159. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart NO3 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
160. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
162. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with waste products take up nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
163. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with waste products take up nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
164. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with waste products take up nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
165. • Four processes participate in the cycling of
nitrogen through the biosphere.
A.) Nitrogen fixation: Break apart N2 so it can join
to other atoms and be used.
B.) Decay: Passes on through eating / waste.
C.) Plants with the help of bacteria take up
nitrogen.
D.) Denitrification: Nitrogen returned to the air.
Copyright © 2010 Ryan P. Murphy
168. • Video! The nitrogen cycle and ninjas.
“Die
Nitrogen!”
“Prepare to
be
denitrified!”
“I will turn
you into
urea!”
Copyright © 2010 Ryan P. Murphy
169. • Video! The nitrogen cycle and ninjas.
– Will you understand any of it now or is it still too
confusing? Be prepared to explain.
“Die
Nitrogen!”
“Prepare to
be
denitrified!”
“I will turn
you into
urea!”
Copyright © 2010 Ryan P. Murphy
170. • Video! The nitrogen cycle and ninjas.
– Will you understand any of it now or is it still too
confusing? Be prepared to explain.
• http://www.youtube.com/watch?v=tSzLQojOItg&featur
e=iv&src_vid=Hghru0O7dDs&annotation_id=annotati
on_151343
“Die
Nitrogen!”
“Prepare to
be
denitrified!”
“I will turn
you into
urea!”
Copyright © 2010 Ryan P. Murphy
171. • Video! The nitrogen cycle and ninjas.
– Will you understand any of it now or is it still too
confusing? Be prepared to explain.
• http://www.youtube.com/watch?v=tSzLQojOItg&featur
e=iv&src_vid=Hghru0O7dDs&annotation_id=annotati
on_151343
“Die
Nitrogen!”
“Prepare to
be
denitrified!”
“I will turn
you into
urea!”
Copyright © 2010 Ryan P. Murphy
An even crazier and very advanced video can be found at…
https://www.youtube.com/watch?v=AqE-0VPHWbM (
172. • Activity! Chutes and Ladders, the Nitrogen
Fixation game.
• Link to Chutes and Ladders (Nitrogen
Cycle Game)
– Please play chutes and ladders the nitrogen
fixation game until the end of class.
– Record your journey until you reach crop
uptake in your journal…..then just play.
– Must make whoooop or weeee sound down
chute.
– If you go off the board go back to start.
– If someone lands on you, your denitrified-go
back to start.
Copyright © 2010 Ryan P. Murphy
173. • Video Link! (Optional) Nitrogen Cycle and Fish
Tank Care.
– http://www.youtube.com/watch?v=1XC7xT0mIbY
178. • Try and be the first to identify the image beneath
the squares.
– Raise you hand if you think you know. You only get
one guess.
Copyright © 2010 Ryan P. Murphy
195. • Video Link! (Optional)
– A nice review for homework
– The Nitrogen and Phosphorus Cycle.
– http://www.youtube.com/watch?v=t6ZI40O3VzA
196. • Video Link! (Optional and Advanced)
• Begin at 4:25 for Biogeochemical Cycling –
Water, Carbon, Phosphorus, Nitrogen.
– http://www.youtube.com/watch?v=09_sWPxQymA
198. • More Units Available at…
Earth Science: The Soil Science and Glaciers Unit, The Geology Topics
Unit, The Astronomy Topics Unit, The Weather and Climate Unit, and The
River Unit, The Water Molecule Unit.
Physical Science: The Laws of Motion and Machines Unit, The Atoms
and Periodic Table Unit, The Energy and the Environment Unit, and The
Introduction to Science / Metric Unit.
Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit,
The Life Topics Unit, The Plant Unit, The Taxonomy and Classification
Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology:
Abiotic Factors, The Evolution and Natural Selection Unit and The Human
Body Systems and Health Topics Unit.
Copyright © 2011 www.sciencepowerpoint.com LLC.
199. • “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to
NABT and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=
1
• http://learningcenter.nsta.org/browse_journals.aspx?j
ournal=tst
Please visit at least one of the
“learn more” educational links
provided in this unit and
complete this worksheet
200. • “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to NABT
and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=1
• http://learningcenter.nsta.org/browse_journals.aspx?jo
urnal=tst
201. • This PowerPoint is one small part of my Ecology
Abiotic Factors Unit. This unit includes…
• A 4 Part 2,400+ Slide PowerPoint
• 14 page bundled homework packaged that
chronologically follows PowerPoint, + modified
version
• 16 pages of unit notes with visuals
• 2 PowerPoint review games
• Rubrics, Answer Keys, games, and much more.
• http://sciencepowerpoint.com/Ecology_Abiotic_F
actors_Unit.html
203. Areas of Focus within The Ecology: Abiotic Factors Unit
Abiotic Factors, Biotic Factors, The Big 7 Abiotic Factors, Organisms Range of Tolerance,
Light, How light affects Organisms, Photosynthesis, Factors in the Environment that Affect
the Amount of Light, How Organisms Movements are affected by light, Bioluminescence,
How temperature affects organisms, Thermoregulation, Physiological Regulation, Behavioral
Regulation, Adaptation, Hypothermia, Hyperthermia, Warm-Bloodedness (endothermy),
Cold-Bloodedness, Hibernation / Torpor, Advantages of Warm-Bloodedness, Disadvantages
of Warm-Bloodedness, Advantages of Cold-Bloodedness, Disadvantages of Cold-
Bloodedness, Water, Water Requirements and Plants, Adaptations of Plants and Water,
Adaptations of Animals and Water, Wind, Positives and Negatives of Wind to Organisms,
How animals use Wind, How Plants use Wind, Wind Dispersal, Water Dispersal, McArthur-
Wilson Island Biogeography Theory, Animal Seed Dispersal, Fire Ecology, Fire Dependence,
Biogeochemical Cycles, Water Cycle, Carbon Cycle, Photosynthesis, Cellular Respiration,
Oxygen-Carbon Dioxide Balance, Nitrogen Cycle, Phosphorus Cycle, Importance of
Phosphorus, Nutrients, Nutrient Pollution and Aquatic Systems, Eutrophification.
Full Unit can be found at…
http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html
209. • More Units Available at…
Earth Science: The Soil Science and Glaciers Unit, The Geology Topics
Unit, The Astronomy Topics Unit, The Weather and Climate Unit, and The
River Unit, The Water Molecule Unit.
Physical Science: The Laws of Motion and Machines Unit, The Atoms
and Periodic Table Unit, The Energy and the Environment Unit, and The
Introduction to Science / Metric Unit.
Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit,
The Life Topics Unit, The Plant Unit, The Taxonomy and Classification
Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology:
Abiotic Factors, The Evolution and Natural Selection Unit and The Human
Body Systems and Health Topics Unit.
Copyright © 2011 www.sciencepowerpoint.com LLC.
210. • Please visit the links below to learn more
about each of the units in this curriculum
– These units take me about four years to complete
with my students in grades 5-10.
Earth Science Units Extended Tour Link and Curriculum Guide
Geology Topics Unit http://sciencepowerpoint.com/Geology_Unit.html
Astronomy Topics Unit http://sciencepowerpoint.com/Astronomy_Unit.html
Weather and Climate Unit http://sciencepowerpoint.com/Weather_Climate_Unit.html
Soil Science, Weathering, More http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html
Water Unit http://sciencepowerpoint.com/Water_Molecule_Unit.html
Rivers Unit http://sciencepowerpoint.com/River_and_Water_Quality_Unit.html
= Easier = More Difficult = Most Difficult
5th – 7th grade 6th – 8th grade 8th – 10th grade
211. Physical Science Units Extended Tour Link and Curriculum Guide
Science Skills Unit http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods.
html
Motion and Machines Unit http://sciencepowerpoint.com/Newtons_Laws_Motion_Machines_Unit.html
Matter, Energy, Envs. Unit http://sciencepowerpoint.com/Energy_Topics_Unit.html
Atoms and Periodic Table Unit http://sciencepowerpoint.com/Atoms_Periodic_Table_of_Elements_Unit.html
Life Science Units Extended Tour Link and Curriculum Guide
Human Body / Health Topics
http://sciencepowerpoint.com/Human_Body_Systems_and_Health_Topics_Unit.html
DNA and Genetics Unit http://sciencepowerpoint.com/DNA_Genetics_Unit.html
Cell Biology Unit http://sciencepowerpoint.com/Cellular_Biology_Unit.html
Infectious Diseases Unit http://sciencepowerpoint.com/Infectious_Diseases_Unit.html
Taxonomy and Classification Unit http://sciencepowerpoint.com/Taxonomy_Classification_Unit.html
Evolution / Natural Selection Unit http://sciencepowerpoint.com/Evolution_Natural_Selection_Unit.html
Botany Topics Unit http://sciencepowerpoint.com/Plant_Botany_Unit.html
Ecology Feeding Levels Unit http://sciencepowerpoint.com/Ecology_Feeding_Levels_Unit.htm
Ecology Interactions Unit http://sciencepowerpoint.com/Ecology_Interactions_Unit.html
Ecology Abiotic Factors Unit http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html
212. • The entire four year curriculum can be found at...
http://sciencepowerpoint.com/ Please feel free to
contact me with any questions you may have.
Thank you for your interest in this curriculum.
Sincerely,
Ryan Murphy M.Ed
www.sciencepowerpoint@gmail.com
213. • Thank you for your time and interest in this
curriculum tour. Please visit the welcome / guide on
how a unit works and link to the many unit previews
to see the PowerPoint slideshows, bundled
homework, review games, unit notes, and much
more. Thank you for your interest and please feel
free to contact me with any questions you may have.
Best wishes.
• Sincerely,
• Ryan Murphy M.Ed
• ryemurf@gmail.com