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

Have you ever wondered what keeps the moon in orbit? Newton's first law gets a quick introduction, too, in this worksheet for kids. Check it out!

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

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

Did you know there are clouds in space? They are very different than the ones on Earth! Read a bit about nebula in this space science worksheet.

Get a brief history of the atom with this introductory page for young physicists!

Explore one of the great mysteries of the universe with this space science worksheet on black holes.

Learn what distinguishes a meteoroid, meteor and meteorite with this outer space science sheet!

Ever wonder what causes lightning to strike? Explore the physics of lightning with this striking physical science worksheet!

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

Have your little chemist think about the properties, or characteristics, of metals. What makes them different than non-metals?

What is the difference between a solar eclipse and a lunar eclipse? Find out with this stellar space science worksheet!

What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

What is the difference between condensation and evaporation? Learn about natural cooling and heating processes that are caused by changing states of matter!

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

We all know the famous equation E = MC^2. But what does it mean? Learn a bit more about Einstein's famous energy equation with this physical science worksheet.

Take a plunge under the surface of the earth! With this worksheet as your guide, you may explore the geological processes of our planet.

Looking for a quick reference about gravity and a definition for kids? This two page worksheet and activity has you covered!

Discover the difference between comets and asteroids in this stellar earth and space science worksheet!

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

Kids can explore ideas of storytelling and science as they fill in this comparison grid with their opinions. Start a conversation of ideas with this worksheet!

If your scientist is mad for magnets, let him explore a few fun facts about magnetism with this physics page!

The periodic table of the elements is full of helpful information. Figure out how to read the periodic table with this helpful guide.

Learn the ins and outs of one of the body's most important organs: the heart!

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

Fill in the blanks from the words listed in the word bank, then keep this sheet handy to prepare for tests and quizzes on life science and photosythesis.

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

Get to know Earth's star with with this diagram and vocabulary worksheet!

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