Here is another creative presentation by your slide maker on the topic “CHEMICAL CHANGES". Hope you like it. If you like it then please, *like*, *Download* and *Share*. By- Slide_maker4u (Abhishek Sharma) *******For presentation Orders, contact me on the Email addresses Written below ******** Email- Sharmaabhishek576@gmail.com  or Sharmacomputers87@gmail.com   *******THANK YOU***************

1. CHEMICAL CHANGES
BY
SLIDE_MAKER4U
(ABHISHEK SHARMA)

2. PHOTOSYNTHESIS
 Photosynthesis is a process
used by plants and other
organisms to
convert light energy, normally
from the sun, into chemical
energy that can be used to fuel
the organisms' activities.
Carbohydrates, such as sugars,
are synthesized from carbon
dioxide and water (hence the
name photosynthesis, from
the Greek φῶς, phōs, "light",
and σύνθεσις, synthesis,
"putting together" Oxygen is
also released, mostly as a
waste product. Most plants,
most algae,
and cyanobacteria perform the
process of photosynthesis, and
are called photoautotrophs.

3. COOKING FOOD
 Baking is a
food cooking method using
prolonged dry heat acting
by convection, rather than
by thermal radiation,
normally in an oven, but also
in hot ashes, or on hot
stones.[1] The most common
baked item is bread but
many other types of foods
are baked. Heat is gradually
transferred "from the surface
of cakes, cookies and breads
to their centre. As heat
travels through it transforms
batters and doughs into
baked goods with a firm dry
crust

4. DIGESTING FOOD
 Digestion is the
mechanical and
chemical breakdown
of food into smaller
components that are
more
easily absorbed into
a blood stream, for
instance. Digestion is a
form of catabolism: a
breakdown of large food
molecules to smaller
ones.

5. RUSTING OF IRON
 Rust is composed of iron
oxides. In colloquial usage, the
term is applied to red oxides,
formed by the reaction
of iron and oxygen in the
presence of water or air
moisture. Other forms of rust
exist, like the result of reactions
between iron and chloride in an
environment deprived of oxygen
– rebar used in
underwater concrete pillars is an
example – which
generates green rust. Several
forms of rust are distinguishable
visually and by spectroscopy,
and form under different
circumstances.[1] Rust consists
of hydrated iron(III)
oxidesFe2O3·nH2O and iron(III)
oxide-

6. SOURING OF MILK
 Curds are a dairy
product obtained
by curdling (coagulating) m
ilk with rennet or an
edible acidic substance
such as lemon
juice or vinegar, and then
draining off the liquid
portion. The increased
acidity causes the milk
proteins (casein) to tangle
into solid masses,
or curds. The remaining
liquid, which contains
only whey proteins, is
the whey.

7. TARNISHING OF JEWELLERY
 Another cause of
discoloration is due to
the corrosion of the
metals from which the
jewelry is made. Pure
gold, 24K, itself will not
corrode but is too soft for
many kinds of jewelry
and therefore is alloyed
with proportions of base
metals, usually silver or
copper to make it harder

8. CUMBUSTION
 Combustion or burning is
the sequence
of exothermic chemical
reactions between a fuel and
an oxidant accompanied by
the production ofheat and
conversion of chemical
species. The release of heat
can produce light in the form
of either glowing or a flame.
Fuels of interest often include
organic compounds
(especially hydrocarbons) in
the gas, liquid or solid phase.

9. DECOMPOSITION
 Decomposition (or rotting) is
the process by which organic
substances are broken down
into simpler forms of matter. The
process is essential for recycling
the finite matter that occupies
physical space in the biome.
Bodies of living organisms begin
to decompose shortly
after death. Although no two
organisms decompose in the
same way, they all undergo the
same sequential stages of
decomposition. The science
which studies decomposition is
generally referred to
as taphonomy from
the Greek word τάφος taphos,
meaning tomb.

10. TOASTED BREAD
 Toast is bread that has
been browned by
exposure to radiant heat.
This browning is the
result of a Maillard
reaction. Toasting warms
the bread and makes it
firmer, so it holds
toppings more securely.
Toasting is a common
method of
making stale bread
more palatable

11. OXIDATION
 Redox (reduction-
oxidation) reactions
include all chemical
reactions in which
atoms have
their oxidation
state changed—that is,
redox reactions involve
the transfer
of electrons between
species.

12. ROTTING FRUIT
 Geotrichum candidum is
a fungus or mold that can act as
a plant pathogen causing sour rot
on peach, nectarine, tomato, carrot
and lemon.[1] It is also widely used
in the production of many dairy
products including many natural
rind cheeses such
as Camembert and other bloomy
rind cheese, Saint-Nectaire,Tomme
de Savoie, and many other cheeses
made in those styles. It is also
found in the Nordic dairy
product viili and is responsible for
the velvety surface of the product.
One of the leading experts in how
this mold affects cheeses during
aging is Sister Noella Marcellino of
the Abbey of Regina Laudis.

13. DECAYING LEAVES
 Hauling bags of fallen leaves
out to the curb for pickup
probably isn’t on your list of
most enjoyable tasks. So
skip it. How? Instead of
bagging your leaves and
putting them out on the curb,
shred or compost them and
reuse them in your own
landscape. It will not only
extend the life of your rake, it
might save you money on
watering, soil additives and
garden fertilizers in the
future.

14. FIREWORKS
 Fireworks are a class
of explosive pyrotechnic devices
used for aesthetic, cultural, and
religious purposes. The most
common use of a firework is as
part of a fireworks display. A
fireworks event (also called
a fireworks
show or pyrotechnics) is a
display of the effects produced
by firework devices. Fireworks
competitions are also regularly
held at a number of places.
Fireworks take many forms to
produce the four primary effects:
noise, light, smoke and floating
materials (confetti for example).
They may be designed to burn
with flames and sparks of many
colors,.

15. EXPLOSION OF DYNAMITES
 Dynamite is an explosive
material based on nitroglycerin,
using diatomaceous
earth (AmE: kieselgur; BrE:
kieselguhr), or another
absorbent substance such as
powdered shells, clay, sawdust,
or wood pulp. Dynamites using
organic materials such as
sawdust are less stable and
such use has been generally
discontinued. Dynamite was
invented by
the Swedish chemist and
engineer Alfred
Nobel in Geesthacht, Germany,
and patented in 1867. Its name
was coined by Nobel from
the Ancient Greek word
meaning "power"

16. BURNING OF WOOD
 Wood fuel is wood used as fuel.
Wood fuel may be available
as firewood, charcoal, chips,
sheets, pellets, and sawdust. The
particular form used depends upon
factors such as source, quantity,
quality and application. In many
areas, wood is the most easily
available form of fuel, requiring
no toolsin the case of picking up
dead wood, or little tools, although
as in any industry, specialized tools,
such as skidders and hydraulic
wood splitters, have been
developed to mechanize
production. Sawmill waste and
construction industry by-
products also include various forms
of lumber tailings.

17. MATCH LIT
 Lighting a match is not
as obvious to some as
it is to others, and
everyone should know
how to light a
match safely.

18. HEATING SUGAR
Caramel is a beige to dark-brown
confectionery product made by heating any
of a variety of sugars. It is used as a
flavoring in puddings and desserts, as a
filling in bonbons, and as a topping for ice
cream, custards, and caramel corn.
The process of caramelization consists of
heating sugar slowly to around
170 °C (340 °F). As the sugar heats, the
molecules break down and re-form into
compounds with a characteristic color and
flavor.

19. FRYING AN EGG
 A fried egg is a
cooked dish commonly
made using a fresh
hen's egg fried whole
with minimal
accompaniment. They
are traditionally eaten
for breakfast in
English-speaking
countries, but may be
eaten at other times of
the day.

20. Here is another creative presentation by your
slide maker on the topic “CHEMICAL
CHANGES". Hope you like it. If you like it then
please, *like*, *Download* and *Share*.
By- Slide_maker4u (Abhishek Sharma)
*******For presentation Orders, contact me on
the Email addresses Written below********
Email- Sharmaabhishek576@gmail.com
or
Sharmacomputers87@gmail.com
*******THANK YOU***************