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.

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

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.

Make a backbone model to explore human anatomy and life science.

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.

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.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

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

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

This science fair project idea investigates the difference in reaction times between boys and girls.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science experiment tests if dog saliva can really help heal wounds.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.