In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project idea investigates whether air has mass and weight.

The project investigates how water and movement affects erosion.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.