Water
Global Water Supply Middle School Curriculum
We take a steady shower stream and clean drinking water for granted, but in many countries around the world, the lack of water or a clean water supply is responsible for higher sickness and death rates. Taking a closer look at the water...
Curated OER
Waves
Students identify the different parts of a wave. In this physics lesson, students explain how animals communicate using sound waves. They discuss the effect of Navy's sonar on dolphins and whales.