This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This science fair experiment idea's objective is to understand the general concept of an acid and a base.

Cleaning can be a chore, but not with this sudsy experiment!