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

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

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 looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

Test whether plants can grow without sunlight and water.

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

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

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

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project idea investigates the difference in reaction times between boys and girls.

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.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science fair project idea investigates how color affects temperature.

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

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 fair project idea determines if the size of the parachute will change the rate at which an object falls.