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

Demonstrate how to tell the age of an egg without having to crack it open.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

This project examines how temperature affects the volume of gas in balloons.

In this experiment we use Scotch Guard to make sand that resists water.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

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

This experiment will examine and precisely measure the amount of sugar in various sodas.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

Invite your kindergartener or first grader to make giant, soft building blocks. He'll have a blast constructing, throwing, stacking, and even falling on them!

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

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

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

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

This science fair project idea explores the different properties of matter.

Science fair project that determines the correlation between wind direction and subsequent weather patterns.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.