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.

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.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

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

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

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

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

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

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

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

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

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

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