You have over 600 muscles in your body! Kids can try this muscle anatomy word search featuring 14 important muscles.

Students research an ecosystem of their choice and create an ecosystem model in this life science worksheet for middle grades!

There are a lot of structures that make up a new plant, called a seedling. Your child will learn what they're called with this life science word search.

This Awesome Anatomy page focuses on the heart and how it pumps blood to all parts of your body.

Fifth-grade learners will look at a diagram of a cell, then follow the instructions to label its parts by color.

Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

Learn about the human brain with this zombie-themed science worksheet!

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Use your knowledge of sea creatures to fill out this crossword puzzle.

Learn about the stages of mitosis with this helpful biology handout!

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

Learn how sensory information is processed by the somatic and autonomic nervous systems with this engaging science worksheet! 

"The hip bone is connected to the...?" Sing the song perfectly with the help of this worksheet on the skeletal system!

Give students an opportunity to model how genes are passed down to offspring with the help of this Punnett squares worksheet!

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

Students hone their understanding of the similarities and differences between animal cells and plant cells in this middle grades life science worksheet!

Explore the difference between natural and artificial selection with this engaging life science worksheet for middle grades!

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

Use this heart anatomy sheet to learn all about your heart and how it works.

Help young scientists understand the different types of organism interactions with this life science worksheet!

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

There's a lot happening beneath the waves, including the ocean food web. Take a closer look with this colorful printable.

Show what you know about the cell cycle with this mitosis matching worksheet!

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

Learn about the integumentary system, which is really just a fancy phrase for "skin", in this worksheet.

Students are introduced to the different types of symbiotic relationships that exist in ecosystems in this life science worksheet.

Use this Inside-Out Anatomy worksheet to learn about the digestive system.

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

Introduce students to the ecological benefits of terracing with this middle grades science worksheet!

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