Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

The project researches how lubricants affect the mechanical advantage of a pulley.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

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 cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

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.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

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

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

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

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Science fair project that builds a magnetometer and demonstrate its uses.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.