In this project children practice the scientific method while playing with puffy paint.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea determines which method of hand cleansing is the most effective.

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.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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.

This science research project challenges students to think of more effective lobster farming methods.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

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!

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.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project teaches students the differences between fruits and vegetables.

The purpose of this science fair project is to build a basic radio.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This science fair project idea examines the reason boats are shaped and engineered.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science project allows students to study the psychology of happiness.