Metric System PowerPoint

• How many millimeters are in 5.3 meters?
5.3 meter  mm
5.3 x 1000 =5300mm

• RED SLIDE: These are notes that are
very important and should be recorded in
your science journal.
• BLACK SLIDE: Pay attention, follow
directions, complete projects as described
and answer required questions neatly.
Copyright © 2010 Ryan P. Murphy

-Please make notes legible and use indentations
when appropriate.
-Example of indent.
-Skip a line between topics
-Don’t skip pages
-Make visuals clear and well drawn. Please label
Convex Lens
Focal Point
Focal Length

• http://sciencepowerpoint.com/

 Area of Focus: The Metric System.

• Please describe the exact unit of
measurement described in each of the
next five photographs.

• What unit of measurement is this?

• What unit of measurement do we see
here?
Copyright © 2010 Ryan P. MurphyCopyright © 2010 Ryan P. Murphy

Gallon
Mph (Miles per hour)
Pounds

• What unit of measurement is used here?

Gallon
Pounds
Inches

• A first down in football is this many yards?

• A first down in football is this many yards?
“Hoot” “Hoot” “Did
anybody see me hiding
on the sidelines?”

Gallon
Pounds
Inches Yards

• What units of measurement do we see
here?

Gallon
Pounds
Inches Yards
Fahrenheit

• More than likely, we said the following
things

things
– Gallon of milk.

things
– Gallon of milk.
– 65 miles per hour

things
– Gallon of milk.
– Quarter Pounder

things
– Gallon of milk.
– Quarter Pounder
– 48 inches

things
– Gallon of milk.
– Quarter Pounder
– 48 inches
– Temperature in Fahrenheit

• I will now redo these five pictures showing
you their metric values.
– Most of us don’t know the metric system well.

• One gallon of milk = 3.78 liters of milk.
Copyright © 2010 Ryan P. MurphyCopyright © 2010 Ryan P. MurphyCopyright © 2010 Ryan P. Murphy

• 65 mph =

• 65 mph = 104 km/h

• A double quarter pounder =

• A double quarter pounder = .226 kg

• A double quarter pounder = .226 kg
“Can I have a .226
Kilogramer and
small Coke.”

• 48 inches tall =

• 48 inches tall = 1.21 meters tall

• 10 Yards =

• 10 Yards = 9.14 meters

• 37 degrees Fahrenheit =

• 37 degrees Fahrenheit = 2.77 degrees Celsius

• The goal of teaching you the metric
system is so you can learn and then use
this system despite the fact that all around
you is a poor system of measuring.

• The goal of teaching you the metric
system is so you can learn and then use
this system despite the fact that all around
you is a poor system of measuring.
– It will be a very difficult fight, as this cheesy
system is already burned into your brain.

“You must
unlearn what
you have
learned.”

“Only then, will you be able
to avoid the Old English
System, which is the darkside
of units, quantities and
measurements.”

“Don’t listen to
Yoda, using
inches, feet, and
pounds is so
much fun
because it makes
no sense.”

“The Old English System
is not stronger, It is
based off of the number
12 instead of 10.”

What is
3 times 12?

Answer: 36

What is 36
times 12?

Answer: 432
Copyright © 2010 Ryan P. MurphyCopyright © 2010 Ryan P. MurphyCopyright © 2010 Ryan P. Murphy

Answer: 5,184?

“I told you my
system was
fun, we get to
multiply large
numbers.”

What is 5,184
times 12?

“Hold on, I need
to get the
calculator?”

Answer: 62,208.

“Imagine if we are
measuring really
large distances
and really large
weights.”

“Try 62,208 times
twelve again.

Answer: 746,496

“Try 746,496 times
twelve again.

Answer: 8,597,952

“Let’s try and go
very small.” “What
is smaller than an
inch in my
system?”

“Answer!”
“Half an inch” What
is smaller than ½
an inch?”

“Answer!”
“A quarter of an
inch” What is
smaller than ¼ an
inch?”

“Answer!”
“An eighth of an
inch” What is
smaller than 1/8 an
inch?”

“Answer!”
“ 1/16 of an inch”
“Then…?”

“This is getting
difficult now.” “My
system only works
for human size
things.”

“The Solar system,
the cell,
atoms…etc.”
“That is just boring
science stuff.”

“Why waste your
time with those
things.” “Just play
video games and
eat pizza with me.”

“Now the Metric System we
will learn. Based off of the
number 10 this is, young
Metric Padawan”

“30 the answer is”
30 times 10 is
what?

“300 the answer is”
300 times 10
is what?

“3000 the
answer is”
3000 times 10
is what?

“30,000 the
answer is”
30,000 times 10
is what?

“300,000 the
answer is”
300,000 times 10
is what?

“3,000,000 the
answer is” “All day
do this we could.”

“Decimal place to
move if units is what
you want to
change.”

“Unwise the Old English
System is, Use the Metric
System science does.”

“Has anyone
seen my body.”
“It’s about a foot
tall.”

“Cancel that.”
“I found it!”

Countries that don’t use the metric system as
their standard

Countries that don’t use the metric system as
their standard.

Countries that use the metric system…

• The countries colored in red are the ones
that don’t use the metric system.

The United States

The United States
Liberia, No
official
system of
measurement

The United States
Liberia, No
official
system of
measurement
Burma – The
Burmese Unit

Every other country in the world
uses the Metric System

Every other country in the world
uses the Metric System
Why does the United States use a
poor system of measurement?

Pride? Patriotism?
Lazy?
$
Lack of Interest?

Pride? Patriotism?
Lazy?
$
Lack of Interest? Education?

Pride? Patriotism?
Lazy?
$
Sports?

Pride? Patriotism?
Lazy?
$
Sports?
Change?

• Even England uses the metric system over
the Old English System that we use.

• Even England uses the metric system over
the Old English System that we use.
Learn more about why the metric system is better
at…http://www.metric4us.com/why.html

• The system of measurement that we use
is based on the following.
– An inch represents the width of a thumb.

• The yard is understood to be the distance
from the tip of the nose to the end of the
middle finger of the outstretched hand.

• The yard is understood to be the distance
from the tip of the nose to the end of the
middle finger of the outstretched hand.
Our wing span

• The foot (12 inches) was originally the
length of a human foot, although it has
evolved to be longer than most peoples
feet.

• The gallon, the basic English unit of volume,
was originally the volume of eight pounds of
wheat.

• The mile is a Roman unit, originally defined to
be the length of 1000 paces of a Roman
legion.

• Acre was originally the size of a field that a
farmer could plow in a single day.

• Point out all of the units of measurement
on this fishing line sticker.

• Point out all of the units of measurement
on this fishing line sticker.
– This products shows the darkside of units and
measurements.

• Answer! 6 lb. A unit of weight = To eight
pounds of wheat.

• Answer: Inches which is equal to the width
of your thumb.

• Answer: 3 feet = one yard.

• Which of the two measuring devices below
is the one that we should use in the field of
science.
– Note: It should be the only one.
A
B

• Answer! The answer is B. The ruler on the
bottom uses the metric system,
A
B

• Answer! The answer is B. The ruler on the
bottom uses the metric system, the ruler on
the top uses inches which is a confusing
and nonsensical system.
A
B

• Let’s X out the units below that follow The
American System and circle the units that
are part of the SI system.

• Answers: Crossing off the (SI) system.
– Pounds -

– Pounds - Quarts

– Pounds - Quarts - Foot, Inch, Yard, Mile

– Pounds - Quarts - Foot, Inch, Yard, Mile
– Fahrenheit Scale

• Let’s circle the measurements, quantities
or units that are part of the SI system.

• Answer! Kilogram. A unit of weight equal
to 1000 grams

• Answer! Kilogram. A unit of weight equal
to 1000 grams
– 1 gram is equal to one centimeter cubed full
of water.

• Answer! The liter. A unit of volume equal
to 1000 milliliters.

• Answer! The liter. A unit of volume equal to
1000 milliliters.
– 1 milliliter is equal to one centimeter cubed full
of water.

• Answers: Meter.

• Answers: Meter.
• A unit of length. 100 centimeters equal a
meter and 1000 millimeters a meter.

• Answers: The Celsius Scale.

• Answers: The Celsius Scale.
– Very common unit for temperature where
water freezes at zero and boils at 100
degrees.

• Video! The U.S. Customary System vs. The
Metric System with American Choppers.
– http://www.youtube.com/watch?v=pikrntjcbyw

• The American System of Measurement, or
Old English System is good because it is
rooted in history.

rooted in history. We should still study it
as part of history, but that is it.
– Adios Cheesy System!

rooted in history. We should still study it
as part of history, but that is it.
– Adios Cheesy System!
“Has anyone
seen my
head, Yoda
cut it off
about a mile
back.”

“False Start.”
“4.57 Meter
Penalty”
“Repeat 1st
Down.”

• Activity! Visiting an online Metric
Converter.
– We will learn to do a few conversions.
– http://www.worldwidemetric.com/measuremen
ts.html

 The International System of Units (SI) also
known as the metric system.

 The Metric System : A measurement
system based on the powers of ten.

• The simplicity of the metric system stems
from the fact that there is only one unit of
measurement (or base unit) for each type
of quantity measured (length, mass, etc.).

• “I am 1828.80 mm tall.”
• “I am 182.80 cm tall.”
• “I am 1.8280 meters tall.”
• “I am .001828 km tall.”

• You can measure the very small and the
very large with the same unit. (Meter)

• You can measure the very small and the
very large with the same unit. (Meter)
Larger
Smaller

5.3 meters  mm

5.3 meter  mm

5.3 meter  mm
5.3 x 1000 =

• How many kilometers are in 5.3 meters?

5.3 meter  km

5.3 meter  km
5.3 / 1000 =.0053km

• How many centimeters are in 1.29 meters?
1.29 meter  cm

1.29 meter  cm
1.29 X 100 =

1.29 meter  cm
1.29 X 100 = 129cm

• How many Hectometers are in 4.4 meters?

• How many Hectometers are in 4.4 meters?
4.4 / 100 = .044 h

• How many Decimeters are in 14.9 meters?

• How many Decimeters are in 14.9 meters?
14.9 x 10 = 149 d

• How many Meters are in 6.1 Kilometers?
6.1 km x 1000 =

• How many Meters are in 6.1 Kilometers?
6.1 km x 1000 =
6.1 x 1000 = 6100

• 1 meter has 100 centimeters

• 1 meter has 100 centimeters
10 mm
100

• 1 meter has 1000 millimeters
10 mm

• 1 meter has 1000 millimeters
10 mm
1000

• A nickel is worth this many pennies?

• A quarter is worth this many nickels?

• Five dollars is worth this many quarters?

• How much money is this? 5 dollars

• The ratios we created are called unit factors
because they are equivalent to 1 unity.

– Any number multiplied by 1 will be equal to
itself.

– Any number multiplied by 1 will be equal to
itself.
– As a result, we can multiply any quantity by a
unit factor to change the unit of measure
without changing the physical quantity.

• rite the conversion as a fraction
• .

• rite the conversion as a fraction
• ultiply
• ancel units from the top and bottom.

• How many pennies is 15 nickels?

15 Nickels

5 pennies
15 Nickels x --------------- =
1 Nickel

5 pennies
15 Nickels x --------------- = 75
1 Nickel

5 pennies
15 Nickels x --------------- = 75 Pennies
1 Nickel

• How many quarters are in 16 dollars?

16 dollars x ------------- =

4 quarters
16 dollars x ------------- =
1 dollar

4 quarters
16 dollars x ------------- = 64
1 dollar

4 quarters
16 dollars x ------------- = 64 quarters
1 dollar

• Let’s convert 5 km to meters correctly.
1000 m
----------------- = 1
1 km

1000m 5000 km x m
5 km ------------ =
1 km km

1000m 5000 km x m
5 km ------------ = -------------
1 km km

1000m 5000 km x m
5 km ------------ = ------------- = 5000 m
1 km km

• Another style to complete conversions.
– Please create a step by in your journal (half page)
– You need red, blue, and green colored pencils.

Learn more about converting units at…
http://oakroadsystems.com/math/convert.htm

• Video Link! Unit Conversions
– http://www.youtube.com/watch?v=XKCZn5ML
Kvk

• Activity Sheet Available. Metric Measuring
and converting units.

• A car is driving 65 miles per hour (mph),
how fast is it driving in meters per second
(m/s)?
1 mile = 1609.34 meters

(m/s)?
65 miles 1609.34 m
------------ x ---------------- =
1 hour 1 mile

(m/s)?
65 miles 1609.34 m 104607.1
------------ x ---------------- = --------------
1 hour 1 mile 1

(m/s)?
65 miles 1609.34 m 104607.1 meters
------------ x ---------------- = --------------
1 hour 1 mile 1 hour

104607.1 m 1 hour 1 min
----------------- x ------------ x ---------- = --------------
1 hour 60 min 60 sec

104607.1 m 1 hour 1 min 104607.1
----------------- x ------------ x ---------- = --------------
1 hour 60 min 60 sec 60 x 60

104607.1 m 1 hour 1 min 104607.1
----------------- x ------------ x ---------- = --------------
1 hour 60 min 60 sec 60 x 60
104607.1
-------------- = 29.05 m/s
60 x 60

• You can now complete this page in your
bundled homework package. (5/6)

• IMAX Cosmic Voyage
• Link to the Powers of 10 portion of video.
– http://www.youtube.com/watch?v=qxXf7AJZ7
3A

• Link! Size Scale of the Universe (Flash)
– http://inciswf.com/589217_scale_of_universe_
enhanced.swf

• How many kilometers away from the earth
is the sun?

• Answer! 1.46 x 108

 Scientific notation: A method for
expressing, and working with, very large
or very small numbers.

 To write a number in scientific notation:
 Put a decimal point after the first digit and
drop the zeroes.
 146,000,000 = 1.46

 To write a number in scientific notation:
 Put a decimal point after the first digit and
drop the zeroes.
 146,000,000 = 1.46 x 108

 To find the exponent, count the number of
places from the decimal to the end of the
numbers.
 In 1.46000000 there are 8 places.
1
 Therefore we write 146,000,000 as 1.46 x 108

numbers.

numbers.
12345678

• To find the exponent, count the number of
numbers.
– In 1.46000000 there are 8 places.
– Therefore we write 146,000,000 as 1.46 x 108

numbers.
The first number
1.46 is called the
coefficient. It must
be greater than or
equal to 1 and less
than 10

numbers.
The first number
1.46 is called the
coefficient. It must
be greater than or
equal to 1 and less
than 10
The second number is
called the base . It must
always be 10 in scientific
notation. The base number
10 is always written in
exponent form.

numbers.
Note that the places
start after the
decimal point.

numbers.
– In 1.46000000
We don’t just add 8
zero’s after the six!

numbers.
– In 1.4600000000

numbers.
– In 1.4600000000
Learn more about scientific notation at…
http://www.purplemath.com/modules/exponent3.htm

• Activity Sheet available (Scientific Notation)

• Other Option: Please use the white boards
and dry erase markers to show your
answer.
– You will make errors in the beginning but
keep with it and don’t check out.

• Activity! Practice Scientific Notation.

• Activity! Practice Scientific Notation.
– What is 567,000 in scientific notation?

• 567000
• 5.67000
• 5.67

• 567000
• 5.67000
• 5.67 x 105

• Activity! Scientific Notation Practice.
– What is 250,000 in scientific notation?

• 250,000 = 2.50000

• 250,000 = 2.50000
• = 2.5 x 10_

• 250,000 = 2.50000
• = 2.5 x 105

– This is the distance from Earth to the nearest
star Proxima Centauri.

• What is 40,100,000,000,000 in scientific
notation?
– This is the distance from Earth to the nearest
star Proxima Centauri.

• Answer! 40,100,000,000,000

• Answer! 40,100,000,000,000 = 4.01 x 1013

– This is the approximate age of the universe in
years.

• What is 15,000,000,000 in scientific
notation?
– This is the approximate age of the universe in
years.

• Answer! 15,000,000,000 = 1.5 x 1010

• Video! Quick Intermission;
– The relative size of stars compared to our
own sun.
– Prepare to feel really small.

– A projected figure for human population 2025

• What is 8,000,000,000 in scientific
notation?
– A projected figure for human population 2025

• Answer! 8,000,000,000 = 8 x 109

• Try this one! What is 9.9 x 107?
– This is the distance from the earth to Mars in
Kilometers.

• Answer! 9.9 x 107 = 99,000,000

• Answer! 9.9 x 107 = 99,000,000
– There needs to be six places after the
decimal. Since the .9 is the first, you would
add 6 zeroes to equal 107.

– The distance in kilometers from the earth to
the Moon.

• What is 3.844 x 105 ?
– The distance in kilometers from the earth to
the Moon.

• Answer! 3.844 x 105 is 384,400 km

– The approximate circumference of the earth.

• What is 4.0075 X 104 km

• Answer 40,075 km

• What is (2 x 104) (4 x 103) ?

• What is (2 x 104) (4 x 103) ?
1) Multiply the coefficients
• What is (2 x 104) (4 x 103)

• What is (2 x 104) (4 x 103) ?
2) Add the exponents (base 10 remains)
• What is (2 x 104) (4 x 103)

• What is (2 x 104) (4 x 103) ?
Example 1: (3 x 104)(2x 105) = 6 x 109
• What is (2 x 104) (4 x 103)

• What is (2 x 104) (4 x 103) ?
Example 1: (3 x 104)(2x 105) = 6 x 109
• What is (2 x 104) (4 x 103)
+

• What is (2 x 104) (4 x 103) ?
• Answer! 8 x 107 = multiply =Add

• What is (2 x 104) (4 x 103) ?
• Answer! 8 x 107 or 80,000,000

• What is (2 x 104) (3 x 104) ?

• What is (2 x 104) (3 x 104) ?
• (6) x (108)

• What is (2 x 104) (3 x 104) ?
• (6) x (108)
• Answer = 600,000,000

• Which one of the choices below is the
smallest number?
• A) (7 x 104)
• B) (4 x 103)
• C) (3 x 108)
• D) (6 x 103)
• E) (9 x 10-3)

• Which one of the choices below is the
smallest number?
• A) (7 x 104)
• B) (4 x 103)
• C) (3 x 108)
• D) (6 x 103)
• E) (9 x 10-3)
– Because (9 x 10-3) is a negative number.
This is very small.

• Scientific notation can be used for very
small numbers as well.

– The decimal number 0.00000065 written in
scientific notation would be 6.5 x10-7

– The decimal number 0.00000065 written in
scientific notation would be 6.5 x10-7
7 places

• What is 0.00053 in scientific notation?

• Answer! 0.00053 = 5.3 x 10-4

• What is 0.00000042 in scientific notation?

• Answer! 0.00000042 is 4.2 × 10–7

• What is 5.73 x 10-4?

• Answer! 5.73 x 10-4 is 0.000573

• What is
9,780,000,000,000,000,000,000,000,000
in scientific notation?

• Answer!
• 9,780,000,000,000,000,000,000,000,000
• 9.78 x 1027

• A light-year is a unit of distance.
– It is the distance that light can travel in one year.
(9,500,000,000,000 kilometers.)

(9,500,000,000,000 kilometers.)
– Light moves at a velocity of about 300,000
kilometers (km) each second.

(9,500,000,000,000 kilometers.)
– Light moves at a velocity of about 300,000
kilometers (km) each second.
– So in one year, it can travel about 10 trillion km.

• Nice Work! Please clean white board and
cap marker.

cap marker.
– Place in a pile at the edge of your table.

cap marker.
– Place in a pile at the edge of your table.
“Let’s work together
to keep this room
clean and
organized.”

• Video Link! Units Crash Course.
– (Optional and Adanced)
– http://www.youtube.com/watch?v=hQpQ0hxV
NTg

• Raise your hand when you think you know
the picture beneath the boxes.
– You only get one guess.

“I love feet and inches
and pounds.”

“That’s 5,280 feet for those
that are interested.”

“These units have no reason.”
“What a ridiculous system of
measurement.”

• You can now be right here on your
bundled homework package. (7)

• You can now add information to the white
spaces around the following.
– You can also color the sketches and text.

Magnification:
The act of
expanding
something in
apparent size.

Magnification:
The act of
expanding
something in
apparent size.
“Green in color
my lightsaber is..”

• “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

• “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 and
NSTA)
• http://www.sciencedaily.com/
• http://www.sciencemag.org/
• http://learningcenter.nsta.org/browse_journals.aspx?jo
urnal=tst

Areas of Focus within The Science Skills Unit:
Lab Safety, Lab Safety Equipment, Magnification, Microscopes,
Stereoscopes, Hand Lenses, Electron Microscopes, Compound
Light Microscopes, Parts of a Compound Microscope, Metric
System, International System of Units, Scientific Notation, Base
Units, Mass, Volume, Density, Temperature, Time, Other SI Units,
Observation, Inferences, Scientific Method, What is Science? What
makes a good scientist? Types of Scientists, Branches of Science,
Scientific Method, Hypothesis, Observations, Inferences.
Hundreds of PowerPoint samples, the bundled homework package, unit notes,
and much more can be previewed at…
http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods.
html

• This PowerPoint is on small part of my Science Skills Unit. This unit
includes…
• A Four Part 2,000+ Slide PowerPoint presentation full of class
activities, review opportunities, project ideas, video linksm
discussion questions, and much more.
• 16 page bundled homework package that chronologically follows the
PowerPoint slideshow. Modified version provided.
• Worksheets, curriculum guide, Common Core worksheet.
• 15 pages of unit notes with visuals for students who require
assistance and support staff.
• Many video and academic links
• 1 PowerPoint review game with answer key.
• Flashcards, rubrics, activity sheets, and much more.
• http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Me
tric_Methods.html

• 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

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

• 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

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