Curated OER
Air and Weather
Second graders study Earth's materials. For this air and weather lesson, 2nd graders note changes in the weather and examine tools that help us study the weather. Students analyze how changes in the environment make changes in the...
Curated OER
The Greenhouse Effect
Seventh graders investigate the temperature change in open and closed containers. In this earth science lesson, 7th graders relate this lab activity to greenhouse effect. They create a line graph from data collected in the experiment.