Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea investigates the difference in reaction times between boys and girls.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This project explores ways to prevent static electrical shocks.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

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

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This simple experiment serves as an introduction to the greenhouse effect.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea determines the probability of a coin landing heads or tails.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!