In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

In this science fair project, young children notice and track changes in trees throughout the year.

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

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Learn how different types of soil affect how animal tracks form in this experiment!

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Make edible amber fossils with your second grader to explore the fascinating world of science!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Is that seed alive or not? Here's an exciting way for kindergarteners to make a seed museum that your child can watch, using simple household materials.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.