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In this science fair project, young children discover what happens when two fluids that have different densities get together.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

An home science experiment for older students that teaches about the science behind heat.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Engineers in training can get started with this simple wheel-and-axle construction activity.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

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

This science fair project idea produces varying pitches of sound.

Try this chemistry experiment with your curious kid and get some "shocking" results!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.