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.

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

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.

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!

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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!

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!

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.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

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

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

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.

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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

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.