Get to know your Jurassic from your Cretaceous in this handy geologic time periods chart.

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

Read up on the digestive system with this page, which follows your food from start to finish.

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Fourth and fifth graders will cut out and assemble a human skeleton from paper in this engaging life sciences printable.

Ever wonder why sounds change as they move away from us? Learn all about the Doppler effect with this physics worksheet.

Get to know your genes with Steve the savvy scientist! Genes help determine everything from your hair color to your height.

This worksheet gives your fifth grader some skeleton know-how, as she fills in the diagram with the bones from the wrist to the fingertips.

Learn all about the liver with this anatomy sheet. Our liver is one of many organs in the digestive system expelling waste from the body.

Did you know cougars can leap 20 feet from a sitting position? This fun worksheet is jam-packed with fun facts about the cougar!

Where is the liver located? Using the diagram as a reference, kids cut out the different parts of the liver from this worksheet and piece them together.

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.

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

Filling out this spider diagram will be much less scary than running into these creepy crawlers in real life. Fill in the body parts from the work bank.

Ever try to see a scorpion up close but were too scared? Get closer than ever with this scorpion anatomy worksheet. Fill in the body parts from the word bank.

Dig into the details of plant growth with this worksheet for fourth and fifth graders!

Discover how water flows in this informative environmental science worksheet!

Dig into a food web in this engaging worksheet!

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

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

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

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

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

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

Peel back the layers of the earth in this earth science worksheet. Can you name all of them?

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

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

Explore humans’ inherited traits with this fun science worksheet!

Play a fun game that combines the periodic table with a classic concentration game.