In the Presence of Oxygen

Blow some bubbles and learn how living things need air in the eighth lesson of this series. Young scientists investigate this important gas by observing bubbles and monitoring their own breathing. A simple and fun activity that raises...

Students complete an experiment to determine if there are bad microbes in food processing.In this bad microbe experiment, students use apples to see how they react to oxygen. Students test apples with chemicals to observe the changes.

In this science experiment instructional activity, students observe and conclude how sunlight affects water plants. Students write three short answers.

Students study the physical differences between wetland and upland soils. They match colors to the different levels of the soil after digging holes. They create soil color charts and chart the texture of the soils.