Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

In this project, several food items are tested to determine whether they contain starch.

Satisfy your kindergartener's fascination of different sounds with this easy science project, where they'll use their ears instead of their eyes to identify sounds!

In this project, a mnemonic is used to test how it increases memory.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

This science fair project idea deals with the qualities of shade on a sunny day.

This science fair project idea examines whether boys and girls differ in reflexes.

Will the shape of an ice cube impact how fast the ice melts?

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Help your child celebrate the summer and the sun by making a sandy seascape.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

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 activity is a fun way for your first grader to learn about how veggies help your body while being creative with art and drama. Here's how to get started.

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.