Author: Emily Su; Sources: National Geographic, Unsplash
10% Rule
INTRODUCTION
Only ten percent of energy in a trophic level is passed on to the next level. The remaining energy is used to reproduce, live, grow, etc.
“Energy cannot be created from nothing, so it must be transferred through the ecosystem.” —National Geographic
ACTIVITY
Energy Pyramid Worksheet
Materials: Printed worksheet and a pencil // Duration: 10-15 minutes
Have students fill out the worksheet.
Go over the answers at the end.
