Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

This project uses toy cars to determine how friction and gravity affect cars and braking.

In this science fair project, young children notice and track changes in trees throughout the year.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Examine whether males or females are more likely to have a higher center of gravity.

This science fair project idea investigates how different disinfectants work in killing germs.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Science fair project that demonstrates how stalagmites and stalactites are formed.

This science fair project idea determines how your body responds to allergies.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

This project examines how temperature affects the volume of gas in balloons.

This project examines whether sugar substitutes are as sweet as real sugar.

This science fair project researches the most effective method to cut an onion and stay tear-free.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Explore the belief in astrology as a predictive system.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.