Find a winning project in our huge library of science fair ideas all organized by grade level! Get detailed guides for experiments in biology, physics, & chem.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Need ideas for an upcoming science fair? Check out this slideshow of some of our favorite anatomy and human body science fair projects and experiments.

Education.com's collection of 3rd grade science fair projects give kids the opportunity to apply their newly acquired skills to thinking critically about the world around them while having serious fun in the process.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.