This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

In this cool science experiment, test and compare the adhesive holding strength of homemade casein glue versus commercial glue.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Determine which video game elevates the heart rate best and burns the most calories.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

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

This science fair project determines which type of physical activity most improves memory.

Did you know magnifying glasses are magic? This hands-on activity has kids using magnifying glasses to engage with the world around them and look close to examine what they find.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Help your child learn about animal classification with this fun and delicious activity.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.