This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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.

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

Test whether plants can grow without sunlight and water.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain 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.

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.

The objective of this science project is to determine the length of time for different seeds to germinate.

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

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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 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.

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

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

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

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