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How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Is that seed alive or not? Here's an exciting way for kindergarteners to make a seed museum that your child can watch, using simple household materials.

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

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Invite your kindergarten marine biologist to practice in scientific identification and categorization while creating a lovely treasure box.

This project determines what category of person is most likely to be ticklish.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Introduce your child to the amazing, almost magical phenomenon of static electricity!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

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

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.