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

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

Teach your little scientist the difference between physical and chemical changes, on a molecular level.

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

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!

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

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

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

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.

With this worksheet, kids read about the sport of biathlon and gain an appreciation for the skills involved by studying the math and physics behind them!

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.

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

Learn all about wildfires, a natural phenomenon looked upon with awe and caution.

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

If your student is stuck on Celsius, hand him this multiplication and division practice sheet.

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

Use this simple graphic organizer to map out a new word and explore it in depth.

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

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

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

This Louis Pasteur biography goes over his accomplishments, and includes a bacteria-based science activity at the end!

Find out all about the different parts of the eyes and how they work together to make vision possible.

Learn about a famous woman of science, Rosalind Franklin, and how she contributed to the discovery of DNA's double-helix structure.

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

Color in this diagram to see how a tree works and to better understand how many plants transport their "food".

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

Let your coloring skills blossom with this flower anatomy worksheet. Make your own flower, color and put your vocabulary skills to the test!

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.