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This project determines how much the rebound rates of tennis balls change after ten games.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

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

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

It can feel good to hit something when you're mad. The more your child pounds, squeezes, and mashes this dough, the better these play dough cookies will taste!

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.

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

This hunting game is just as fun outdoors as it is inside. And while they'll never suspect they're learning, it helps kids develop listening skills, too!

This simple way to help your child understand story problems begins as a quick activity and turns into a study tool for years to come!

Your second grader will get great measuring practice as she helps you make this rich and creamy green dip!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Learn all about cause and effect as your child experiments with an exploding pumpkin in this engaging fall activity! Get the whole family involved with this simple science experiment that is a fun and exciting way to combine Halloween and science.

Here's a striking barrette to make for the holidays, and enjoy for years to come!

Here's a hands-on activity that first grade use to help kids get a feel for equations. It uses popsicle sticks to practice addition and subtraction!

Quick and easy, this middle school activity makes a great first sewing project and is the perfect way to introduce your child to hand or machine sewing.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Encourage your fourth grader to develop their critical thinking and critical writing skills with this Critics' Choice movie booklet for your family.

Kids think of 25 ways to live healthier, more active lives and come up with a plan to put into action in this middle school heath activity.

Discover which absorbent material is the best; the Shamwow, paper towels, or cotton towels.