Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

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

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

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

This project involves the development of a website using free software online to promote the value of science.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

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

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Science fair project that designs a video game that requires players to use relevant skills.

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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.