In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

Do different types of oil mix or stack? Find out in this science fair project idea!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

In this project, different brands of microwave popcorn are tested and compared.

This project compares the strength of one, two, and three-ply toilet paper.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

The project investigates how friction affects motion by using different surface textures.

Determine if gender affects the ability to identify different smells.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project idea explores whether white light can be separated into different colors.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.