In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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.

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

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

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

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

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

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.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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.

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

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.

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

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

This project determines what category of person is most likely to be ticklish.

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

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?

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

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science fair project idea explores whether white light can be separated into different colors.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

Word color association is just a fancy way to talk about the way we connect colors with words.

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

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

In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.

In this science fair project, young children notice and track changes in trees throughout the year.