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.

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.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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

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

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

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

In this project children practice the scientific method while playing with puffy paint.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Test whether plants can grow without sunlight and water.

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.

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?

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

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

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

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

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

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

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

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

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?