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This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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 explores whether talking to a plant will help it grow.

Examine the effect of pressure on carbonation in soda.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

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

In this CD hovercraft science project, students will construct their own DIY hovercraft.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

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

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Learn whether writing things down really makes things easier to remember.

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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea examines whether boys and girls differ in reflexes.

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

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