This project compares the strength of one, two, and three-ply toilet paper.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This science fair project idea investigates whether plants can survive being frozen.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea explores the different properties & interactions of sugar molecules.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.