Curated OER
Nitrogen Cycle-Stream Side Science
A thorough background and nitrate sampling lab sheet are provided to share with your young scientists. After discussing the nitrogen cycle with the class, you will break them into small groups and show them how to use their inquiry...
Curated OER
The Water Planet
Students use NASA photographs and hands-on activities to compare the amounts of land and water on our planet. They discover that the world has five oceans and that they cover seventy percent of Earth's surface. Students learn how this...