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Ever wonder how the sun helps plants grow? Here is an easy way to explain the process of photosynthesis to your first grader.

Little biologists will use this respiratory system diagram to identify the most important parts of the human respiratory system and their functions.

Little gardeners, get to know your plants! See the cycle of a plant from its birth to adulthood, and read a bit about photosynthesis too.

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.

Why do zombies love brains? Find out with this collection of fun facts and a colorful diagram of the brain.

In this worksheet, students will read two different passages about the platypus. Kids will compare and contrast the passages, and identify the main ideas.

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

Help your preschooler sharpen their knowledge about plants with this colorful worksheet. They'll use the word bank to name the basic parts of a plant.

All living things go through cycles. Learn about the life cycle of an amphibian with this diagram of the life of a frog!

How does the butterfly become so beautiful? Learn about the four stages that it goes through in its life.

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

What makes for healthy lungs? Kids can use the labeled diagram of the human lung's different components to complete the word scramble at the bottom of the page.

Young readers will love digging into this passage's cool sea turtle facts, and they'll get a nice reading comprehension workout in the process.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

Get outside and take a stroll! This leaf guide will give your little one a great learning experience the next time you're out at the park.

Ever wonder what makes the leaves change colors in the fall? Find out with this fascinating life science worksheet.

Color in this diagram to see how a tree works and to better understand how many plants transport their "food".

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

This fun cut and paste sheet teaches kids about the process an apple tree goes through as it grows.

Learn the ins and outs of one of the body's most important organs: the heart!

Young readers will love digging into this passage's cool whale facts, and they'll get a nice reading comprehension workout in the process.

Young readers will love digging into this passage's cool starfish facts, and they'll get a nice reading comprehension workout in the process.

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

Did you know that baby turtles are born all alone on the beach? Learn about the life cycle of a turtle with this life science worksheet.

Take a trip down to the deep blue sea and learn about the life cycle of a fish! Fish go through the same stages of life as many other living things.