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 project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

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!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

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

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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?

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

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