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Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this project students experiment with making music using only glasses of water.

In this science fair project, students make their own rain gauge to measure rainfall.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

The goal of this project is to create an exciting topographical map out of dough.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

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.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

In this activity your child will create their very own marble maze!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.