Curated OER
Temperature and the Density of Air
Here is a hands-on activity in which junior scientists put air into a balloon to create a closed system. They measure its circumference, warm it in hot water, and then remeasure its circumference to discover how temperature affects the...
Curated OER
Ecosystems
An in-depth look at ecosystems is outlined in this 13-slide PowerPoint. Students will learn about different types of ecosystems on our earth. An activity is provided on slide eight, as well as three scenarios to analyze on slide nine....
Curated OER
Do You See What I See?
Second graders view a teacher-created terrarium, and complete a KWL chart. They discuss what they can see, Students go on a nature walk and compare the schoolyard to the terrarium, discussing the roles of rocks, plants, soil, and water...
Curated OER
Effects of Nitrate and Phosphate Changes on the Growth of Algae
Students determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.