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This science fair project idea investigates the difference in reaction times between boys and girls.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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.

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This project examines whether people's taste perception is influenced by what they see.

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

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Learn all about balance and motion as your child designs a corn maze!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Find out whether a longer airplane will fly farther or a wider paper airplane.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This science fair project idea determines if the color of light affects the growth of plants.

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.

Examine the effect of pressure on carbonation in soda.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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

This project investigates the affect of storage temperature on microwave popcorn.