This science project teaches students to classify different shapes of leaves.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

In this science fair project, students create their own miniature salt flats at home.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

In this science fair project, students make their own rain gauge to measure rainfall.