Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

This Earth Day, learn about conservation and the environment while you enjoy solving a fun puzzle! 

Does your learner ever wonder what makes the Earth dark at night and bright during the day?

Find out more about single-cell organisms with this coloring page and diagram.

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

Learn about the many different biomes the Earth is home to in this life science worksheet, which holds the answers to some simple life science questions.

Learn all about vision and sight with this life science diagram.

Discover the details of desert plant life in this informative worksheet!

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

Expand your sea creature vocabulary with this Life in the Reef worksheet!

This packet of worksheets introduces children to food webs, an important life science concept.

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

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

Learn more about the skin (and the science behind pimples -- ew!) in this printable life science diagram.

If you were a mad scientist, what modern-day version of Frankenstein's monster would you create?

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

If your child is studying life science, introduce her to all the strange animal pairs that work together in the wild.

Get to know the residents of the reef with this coral reef-themed crossword, perfect for expanding life science knowledge and working on vocabulary, too!

Learners will use a word bank to label 15 parts of the human digestive system in this life sciences diagramming activity.

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.

This is the story of our solar system. Learn about the life of Nicolaus Copurnicas and his great discovery. Learn more by answering the question at the bottom.

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.

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.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Did you know an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

Need to know all about the lungs? Study up with this comprehensive lung anatomy worksheet.

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.