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.

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

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

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.

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

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

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

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

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

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!

Test your friends to find out if you can replicate the placebo effect's incredible results.

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.

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?