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Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

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 measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Have your child kick off their summer vacation by making a miniature water slide!

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Discover whether a metal will expand under hot water.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Science fair project that determines whether mass and weight are the same or different.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

This science project has students study the idea of human beauty.