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This science fair project idea explores whether talking to a plant will help it grow.

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This science fair project idea produces varying pitches of sound.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

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

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

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

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.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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.

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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.

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

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

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

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