Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

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

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Cleaning can be a chore, but not with this sudsy experiment!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

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 purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.