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Make this door curtain to brighten up your home and learn colors and patterns.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea investigates the difference in reaction times between boys and girls.

Improve your child's memory, focus, and concentration with this outdoor group memory game. For 4th grade, 5th grade, and middle school age children.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Have a bookworm on your hands? They'll boost their spelling and problem solving skills with this Oulipo activity re-writing lyrics to beloved Christmas songs!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Turn the marks on the wall into art! Create fingerpaint flamingos, herons and ostriches with this fun craft for kids.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science fair project idea explores whether white light can be separated into different colors.

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Celebrate St. Patrick's Day this year by making your very own lucky pot of (chocolate!) gold in this 3rd grade arts and crafts activity.

Looking for something to do on a slow afternoon? Try cornhole, a simple and fun tossing game. Make your own set with a few things from the recycling bin.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

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.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

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

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.