Do different types of oil mix or stack? Find out in this science fair project idea!

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.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

What happens when colored beams of light mix? You might be surprised.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

This science fair project idea examines the reason boats are shaped and engineered.

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Hunt for natureâs treasure, the many different products made by trees!

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.