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

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

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

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.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.