What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Do different types of oil mix or stack? Find out in this science fair project idea!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project idea explores whether talking to a plant will help it grow.

In this science project, the center of gravity is explored.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea investigates how the shape of an object affects drag.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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 experiment you explore how tectonic plates move to create land and expand bodies of water.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project idea demonstrates that plants give off water.

The project investigates how friction affects motion by using different surface textures.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

Using a toy race car kids create a visual model of the Doppler Effect.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Discover whether a metal will expand under hot water.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea explores the egg's thin membrane.

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

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