1. The Carbon Cycle

2. The Carbon Cycle
The Carbon on earth can be found in many different compounds and is constantly changing from one to another.
Try to answer the following:
How does carbon exist in the atmosphere?
Where is carbon found in the earth?
What processes add more carbon to the atmosphere?
What processes remove carbon from the atmosphere?
How big an impact does human activity have on the cycle?

3. The full Carbon Cycle
Insert the correct words from the table below into the red boxes above:
combustion
decomposers
excretion
feeding
photosynthesis
respiration
carbon dioxide in the atmosphere
thermal decomposition
calcium carbonate
sea weed
sun light
gas
oil
fish
chalk
coal
limestone
marble

4. The Water Cycle Processes
Insert the correct processes from the table below into the red boxes above:
absorption
condensation
drinking
respiration
evaporation
excretion
percolation
precipitation
transpiration

5. The Nitrogen Cycle
Nitrogen
Cycle
Animation
Activity
Sheet