The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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 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.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Test out various brands of permanent markers to see which one is least water soluble.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

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

The project determines which laundry detergent is best for cleaning clothes.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Discover which fabrics shrink the most in the wash and why.

Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea experiments with spinning color wheels and optical illusions.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.