Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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.

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.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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!