Curated OER
Stable: Print and Color
For this word recognition worksheet, learners trace the word "stable", write the word independently, and color the picture of a stable.
University of Hamburg
University of Hamburg: Homeostasis Some General Principles
An online, college-level textbook about homeostasis. Find out what it is, and how this function allows us to stay alive.
Khan Academy
Khan Academy: Ecology: What Is an Ecosystem
Learn what an ecosystem is, how energy and matter move through ecosystems, and what makes an ecosystem stable.