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 project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

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!

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

This project determines what category of person is most likely to be ticklish.

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

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 if planting seeds in a certain direction will affect how fast it germinates.

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?

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Plants and light seem to be good buddies, but how far does the friendship really go?

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

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

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Determine whether butterflies like to drink sugar water, salt water, or plain water.