Determine whether butterflies like to drink sugar water, salt water, or plain water.

Demonstrate how to tell the age of an egg without having to crack it open.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

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

This science project allows students to study the psychology of happiness.

This science fair project idea determines the most effective method of preserving food.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Test whether plants can grow without sunlight and water.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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?

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

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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.

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

The objective of this science fair project is to analyze the effects of salinity and temperature on 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.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project idea investigates if fats add to the flavor of food.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.