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.

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

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

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

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

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

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

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

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!

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

This science fair project idea compares the cuteness reaction between genders.

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

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.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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.

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

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.