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Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Help your child make a beautiful homemade sandcastle that will last!

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

The project researches how lubricants affect the mechanical advantage of a pulley.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.

Examine how a battery can be made from everyday materials.

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

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

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

This science fair project idea examines eye color genetics and the role it plays in eye color inheritance.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

This science fair project idea produces varying pitches of sound.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

This project explores ways to prevent static electrical shocks.

Plant a mini herb garden and teach your child about science and nature.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.