Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Find out whether putting something on top of a plant will inhibit its growth.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

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

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

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

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

This science research project challenges students to think of more effective lobster farming methods.

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

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

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

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

Examine the effect of pressure on carbonation in soda.

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.

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