How can you tell how old a tree is? Look no further! This worksheet gives a basic overview of tree rings for your little scientist.

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

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.

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.

Help your child understand why it's so important to take care of the environment with this info-sheet about an endangered species: the spectacled bear.

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.

Do you need a job? Well, this elephant is looking for a new symbiotic partner, and you could be just the candidate he's looking for!

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

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

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.

Hop this way for some marsupial madness! Your child can learn about the life cycle of a kangaroo, and how marsupials differ from mammals.

The olm is a blind salamander that lives in Europe. Kids will learn how pictures help illustrate concepts with this life science worksheet.

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

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

Practice identifying living and nonliving things with this first- and second-grade science worksheet!

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

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