Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

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 is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

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.

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

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

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

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.

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?

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