Showing Results for within 25 and rectangular arrays

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

The purpose of this science fair project is to build a basic radio.

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.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

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

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.