All living things need energy to survive. All energy comes from the sun and is converted as it moves through the Earth’s food webs and other chemical processes. Can you trace all the energy in your life back to the sun? Try this simple critical thinking exercise. Write down all the things you “consumed” today and trace them back to the sun. Be sure to include food, clothing, toiletries, travel fuel, school supplies, etc. (You may have to do some research.)


