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What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Energy is a crucial part of physical science! All things on Earth have energy, whether it's potential or kinetic.

On this worksheet, kids learn all about the look and location of Uranus, and they get to cut out a picture to use in their own Solar System diagram.

Learn about drag, air resistance, and Newton's laws with this cool worksheet on bobsled physics!

For each item on this first grade science worksheet, kids match a piece of clothing with the thermometer showing a temperature for wearing the item of clothing.

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!