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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea investigates the hardness property of minerals.

Play Rock Tic-Tac-Toe, the perfect outdoor game for all ages. Help your child develop thinking skills and get away from the TV!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

This science fair project idea provides evidence that air is everywhere and takes up space.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.