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.

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.

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

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

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

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

In this project children practice the scientific method while playing with puffy paint.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Learn all about balance and motion as your child designs a corn maze!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.