This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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.

This science fair project will help students learn about non-vascular plants, such as mosses.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Start your toy engines -- this is going to be a fast and friction-filled race!

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.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?