Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Make a backbone model to explore human anatomy and life science.

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

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!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

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

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!