Curated OER
The Food Chain
First graders explore how most living things, big and small, need food for survival.
Read Works
Read Works: The Food Chain
[Free Registration/Login Required] An informational text explaining important vocabulary involving the food chain. A question sheet is available to help students build skills in reading comprehension.
PBS
Pbs: The Living Edens: The Food Chain
PBS site provides some basic information on the food chain.