This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This project compares the strength of one, two, and three-ply toilet paper.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.