Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

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.

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.

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.

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

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

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this experiment we will be determining whether birds prefer certain colors of seed.

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.

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

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

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

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Discover whether ants are more attracted to natural cane sugar or artificial sweeteners.

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.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Science fair project that examines the physical features of elephants and butterflies and draws conclusions about their similarities.

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

This science fair project idea designs safe bicycle routes using GPS.

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

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.