What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

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.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

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

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Find out whether matching resonant frequencies can cause objects to shatter.

How powerful is the reaction between baking soda and vinegar? Find out here!

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This experiment investigates whether there are certain sounds that affect men and women differently

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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 sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.