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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Test whether plants can grow without sunlight and water.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this project students experiment with making music using only glasses of water.

Do you think heat can affect a plant's growth rate?

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

The project determines which type of birds prefer which type of birdseed.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project idea explores how length affects the weight a bridge can hold.

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.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

This project investigates the affect of storage temperature on microwave popcorn.