What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Try out this simple worksheet diagramming the anatomy of a shrimp. Big words, small sea creature.

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

Learn about the animal kingdom with this centipede anatomy worksheet. Fun fact: Centipedes have either 15 or 17 pairs of legs, but never 16!

Meet the beetle! Filling out this simple worksheet can help your 5th grader learn the anatomy of a beetle.

Have you ever wondered why manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

This solar system worksheet guides your child through the order of the planets. Use this solar system worksheet to learn about the planets in the Milky Way.

Children will learn important facts about food chains in these worksheets.

Draw the phases of the moon in this earth sciences worksheet!

Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

Learn more about the mysterious brain and how it works with this brain anatomy worksheet.

Facts about ostrich include that they are the largest birds in the world and that they can't fly, but that's not all. Learn all about this amazing bird!

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.

Arm your budding physicist with a free print-out version of the periodic table of the elements!

The water cycle plays a big role in weather patterns. Color this water cycle chart and get familiar with this cycle at work.

Dig your hands into some earth science with this soil sheet! Your little scientist can hone his reading skills as he learns what soil is and how it is formed.

Explore how traits are influenced by both genetic and environmental factors with this life science worksheet!

This activity allows you to learn a fact about each one of our nine planets. Color in the planets then turn the worksheet into a fun and educational placemat.

Explore how the fossil record is used to study the evolution of organisms in this engaging science worksheet for middle grades!

This diagram of a human skeleton is labeled with 12 major bones, from skull to fibula.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

For those of you studying human anatomy, here is a great diagram of the major organs in our body!

After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

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

Learn all about charging by friction with this fascinating science worksheet for middle grades!

This word search helps expand kids' animal vocabulary and introduces them to animals that live in shells, all while keeping them entertained.

Practice using the periodic table to calculate the number of neutrons in the atom of an element.