A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

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

Using simple materials found around your home, you can reinforce the static electricity concept by helping your child build a simple device with zapping power!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.