ND Studio
← Educator's Arcade

Trophic Tax

Free Energy Pyramid Game: the 10 Percent Rule and Food Chain Energy Flow. Life science, grades 6 to 8.

ndstudiollc.com/arcade/trophic-tax
Life science · Grades 6 to 8FREE
Open full screenNo login. No student data. Nothing to install.

About this game

Energy flow through a food pyramid.

Every step up a food chain costs ninety percent. Grass catches sunlight, a grasshopper eats the grass and keeps about a tenth of the energy, a mouse eats grasshoppers and keeps a tenth of that, and by the time you reach the hawk almost nothing is left. That is why there are so few hawks and so much grass, and why food chains are only ever a few links long.

What it covers

  • energy pyramid
  • ten percent rule
  • food chains
  • trophic levels
  • energy flow in ecosystems

Standards

  • NGSS MS-LS2-3

It is one HTML file that runs on a Chromebook, with three levels so one game covers the whole room. The teacher guide and the offline file are on the Educator's Arcade TPT store, free.