How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

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

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

What do a raven, a bat, and a wolf have in common? Similar skeletal structures! In this Halloween worksheet, middle-grade students will explore homologous structures in different animals. 

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

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

Discover how animal behaviors increase the probability of successful reproduction and offspring survival with this middle school science worksheet!

This cool worksheet prompts young biologists to research the functions of cell organelles labeled in the diagram.

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

Use this engaging worksheet to introduce students to the geologic time scale and the pieces of evidence scientists use to determine Earth’s history!

Record your notes as you learn about the cell cycle with this one-page template!