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

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

In this experiment, you experiment with laser jet toner, a magnetic fluid, as it moves, bubbles, and forms unique shapes.

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

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

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

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

Find out whether people within a family tend to have matching fingerprints.

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

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

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

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

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.