PhotosynthesisSay it to yourself 10 times…

CO2 + water + sunlight =

O2 + water + sugar

The Carbon CycleAll life is based on the element

carbon.

Carbon is in…..•all living things•the atmosphere•layers under ocean floor•fossil fuels (coal, oil, gas)

Every living thing contains carbon.

Carbon is always being cycled through the environment (from plants and animals to the

air and ground)

How does carbon move FROM the air INTO plants and animals?

Carbon dioxide (CO2)moves into plants by

photosynthesis

This is how all living things have carbon in them!

Carbon moves into animals by eating

plants or other animals

Photosynthesis: When plants take in carbon dioxide (CO2) and change it into oxygen (O2)

(CO2) => (O2)

Carbon moves from the air into plants by photosynthesis!

Plants take in carbon dioxide (CO2) through their leaves. They use CO2 to make their food. Then, plants give out oxygen (O2) in a process called photosynthesis.

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How does carbon dioxide move INTO the air FROM animals?

All living things breathe.

This is called respiration.

During respiration,

animals take in oxygen

(O2) and give out carbon

dioxide (CO2).

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Plants and animals trade carbon dioxide (CO2) and oxygen (O2)

back and forthAnimals (including

humans) breathe

out carbon dioxide

(CO2) through

respiration.

Plants take in the carbon dioxide(CO2) through photosynthesis and give out oxygen (O2)

Animals need oxygen to breathe. They breathe the O2 from the plants and release CO2.

GLOBAL WARMING: A result of TOO MUCH carbon in the air!

Too much carbon in the atmosphere is bad for the Earth. It traps in heat and causes global warming.

Burning fossil fuels produces carbon dioxide

How does TOO MUCH carbon move into the air?

Volcano eruptions

Burning Fossil Fuels (pollution)

Deforestation (cutting down trees)

Humans are

adding too much CO2 to the air!

How does TOO MUCH carbon move into the air? “Burning coal, oil,

and other fossil fuels releases heat-trapping gas, such as carbon dioxide (CO2), into the atmosphere.”

Burning fossil fuels produces carbon dioxide

Human activities

We burn lots of fossil fuels -Transportation (cars, busses, etc.)-Heating-Cooking-Electricity-FactoriesAll of this releases lots of carbon dioxide CO2 into the air.

We are adding carbon to the air faster than it can be removed through photosynthesis. Because of this, there is more carbon dioxide today than there has ever been!

Human ActivitiesDeforestation (Cutting down lots

of trees) Allows too much carbon dioxide (CO2) into the air.Less trees means less photosynthesis, so more CO2.

What can we do??Human Activity that can REDUCE (decrease) the amount of Carbon

• USE LESS ELECTRICITY – Electricity is one of the biggest producers

of carbon. Every time you make toast or turn on the TV, you are adding to global warming.

– Turn it off when not in use (lights, TV, DVD player, computer, etc....)

• Recycle paper and plant more trees

Label The Water and Carbon CyclesInclude: Respiration, Transpiration, Condensation, Evaporation, Precipitation, Photosynthesis

Label the sun and water

Condensation

Respiration

Respiration

PrecipitationPhotosynthesis

Sun

Water

Evaporation

Transpiration