Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Have your child kick off their summer vacation by making a miniature water slide!

This science fair project idea explores the egg's thin membrane.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Construct batteries that make electricity from fruits with this fun science fair project.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

In this fun experiment, we'll find out how color affects heat absorption!