The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

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.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

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.

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

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.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

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.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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

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

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

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

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

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

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.