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

Grandma and grandpa didn't always have gray hair. Find out about what gives our hair color and what makes our hair lose that color as we get older.

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.

Hiccups interrupt us when we're talking and sometimes even get in the way of eating! Find out why we hiccup and discover some unusual ways to get rid of them.

Dip your toes into a marsh habitat in this second- and third-grade worksheet!

Explore the lush plant life of the tropical rainforest in this second- and third-grade worksheet!

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

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

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

Learn about a famous woman of science, Rosalind Franklin, and how she contributed to the discovery of DNA's double-helix structure.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

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

Dreams can be delightful or downright terrifying. Discover the science behind dreams and try to figure out what your dreams say about you.

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.

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.

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.

Mmmm honey is delicious, but do you know how it's made? Take a dip into some sweet knowledge and find out the buzzy secrets behind honey.

As your child completes this science worksheet on the life cycle of a peanut, he'll get the chance to practice his sequencing, labeling, and drawing skills.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

Get in tune with nature, and read a bit about an endangered species of animal, the Black-footed Ferret. Your child can color an illustration as he reads.

Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

Did you know that one of the main ingredients of a perfect pearl is dust? Learn all about the bizarre process behind every pearl with this science worksheet.

A useful overview of terrestrial biomes, including a climate key.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

Introduce your student to an endangered species, Przewalski's horse, with this information sheet. They can color the illustration as they read.

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

Whether you say buffalo or bison, it is still the largest land mammal in North America. Discover a bit more about this majestic animal.

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

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