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.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

In this fun activity, your child will create their very own solar oven to bake s'mores!

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

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Make a spring collage with your child to get them outside and those creative juices flowing!

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

Create a bee garden to help shelter bees in your area.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!