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.

Get a light lesson in the darkest of creatures, the raven.

When we get embarrassed or anxious, and all of a sudden our cheeks get red! Why does our body do this? Find out what scientists think blushing is all about.

Get the facts on the beautiful elk, an American treasure and a symbol of Yellowstone National Park.

This story writing prompt encourages children to get creative with an important life science concept: the food chain!

Is it true that male seahorses get pregnant? Find out with this fun, fact filled worksheet, all about seahorses!

Does your budding biologist know his plant parts? Get a great review of some important plant vocabulary with this info page.

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

Learners will get to know the bald eagle, the national bird of the United States and an inhabitant of Yellowstone National Park.

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

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!

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.

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.

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.

Lots of people like turtles, but how much do you really know about them? Get to know one of many types of turtles with this informational worksheet.

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.

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.

All kids love animals, but how much does your child know about them? Kids will get to learn some animal vocabulary with this wild crossword puzzle.

Some people think alligators and crocodiles are the same, but there are some distinct differences. Check out this cool worksheet to learn what they are.

If your kid gets excited about snakes, you need this cool worksheet. Learn a bit about carpet pythons, such as what colors they may be, and then color the picture.

Celebrate the fall season with this nature sketchbook, perfect for any lover of the outdoors!

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

Take a look and learn all about this beautiful and rare tiger from the islands of Sumatra in Indonesia.

Learn about the black bears of Yellowstone National Park.

Ever wonder why zebras have so many stripes? Find out with this fun worksheet all about the zebra!

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

Pheww! What is that stinky smell? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about skunks!

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!