Problem: - Place your non dominate foot on the front of the skateboard - Push off with your other foot on the ground - Keep pushing with your dominate leg - When comfortable put both feet on the skateboard What might be the last step of the process?

A: Balance your body as you roll on the skateboard.

Problem: - Plants and animals long ago died - They are buried under layers of soil - Pressure builds over time - The remains liquefy What might be the last step of the process?

A: The carbon atoms rearrange to become a new substance.

Problem: - Several types of gases form in the atmosphere - May come from different sources - The gases remain trapped in the atmosphere - Through the suns light the gases hold in heat and energy - Trap them in our atmosphere What might be the last step of the process?

A: The earth may become warmer this way.

Problem: - Food is put into mouth - Food is chewed and mixed with saliva (spit) - Food travels down the esophagus (throat) - Food travels into the stomach - Acid in the stomach breaks the food down further - Food travels into the small intestine - Nutrients from food are absorbed into the blood stream - Food travels into the large intestine - Most of the remaining material is now waste What might be the last step of the process?

A:
The waste is eventually removed from the body.