Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Guglielmo Marconi was a man who made waves in radio and sound. Learn about his life and work, then answer a short essay question in this science worksheet.

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

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

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.

Help your student become aware of everyday energy use with this fill-in-the-blank worksheet.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

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

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Use your powers of prediction to project the future movement of playground objects!

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

Apply concepts of energy and motion to marbles in this fourth-grade worksheet!

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

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