Start your toy engines -- this is going to be a fast and friction-filled race!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Determine if gender affects the ability to identify different smells.

Examine the effect of pressure on carbonation in soda.

This science fair project idea explores the egg's thin membrane.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This project tests the hypothesis that dark colors absorb more heat than light colors.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science fair project idea produces varying pitches of sound.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Discover whether a metal will expand under hot water.

This science fair project idea examines the reason boats are shaped and engineered.

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!