Curated OER
Wildlife Study Comparison
Environmental science classes read articles about two different scientific studies. One is about the effects of contraceptive chemicals on fertility, and the other is about how a pesticide may be reducing bone density in exposed...
Curated OER
Bone Density
Learners recognize how the strength and density of bone can reduce fractures. In this bone density lesson, students calculate density as they measure volume and mass of serial bone specimens in a group activity.