This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.