This science fair project idea produces varying pitches of sound.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea investigates the hardness property of minerals.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

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

Find out which kind of bubble wrap fares best when put in impact.

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

This science fair project idea determines what household items are good conductors of electricity.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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

This science fair project idea determines what household items are good conductors of electricity.

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

This science fair project idea explores the different properties & interactions of sugar molecules.

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

This science experiment tests if dog saliva can really help heal wounds.