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Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Do you think heat can affect a plant's growth rate?

Cleaning can be a chore, but not with this sudsy experiment!

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

In this science fair project, students use the streak test to tell minerals apart from each other.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!