What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

Investigate the mystery of why two tomato plants developed so differently!

These math cards are printable quiz cards to challenge your first grader's overall knowledge.

Hey, did you hear that? Explore real-life examples of sound energy with this kindergarten and first-grade worksheet!

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

What does a seal eat? Kids choose the pictures that show what kind of food each animal likes to eat in this first grade life science worksheet.

Uncover secrets of the past with this third-grade worksheet about fossils!

Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Did you know that having a pouch or a shell can help an animal meet its needs? Learn how animals use different parts of their body with this matching worksheet for kindergarteners and first graders!

Describe how things feel when you touch them and push on them!

Learn about the similarities and differences between objects in this colorful science worksheet!

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Prepare for an exciting experiment with this cut-and-paste lab safety worksheet for first and second graders!

If a ship went down, would these items sink or float? Your little one will decide, with this fun worksheet to help him hone sorting and categorizing skills.

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

These two children sure look alike -- maybe because they're twins!

Who will win the marble race in this two-page physical science worksheet?

In this worksheet, children practice identifying animals of North America by their tracks.

Use this cool 2-page worksheet to make your own big dipper clock!

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

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Print out a set of weather-themed postcards to give your child practice identifying seasons. These weather postcards also allow kids to practice writing skills.

Is your child baffled by the scientific method? Dr. McSquare is here to help! Learn the steps by helping the doctor organize his lab reports.

Try this worksheet diagramming a snail anatomy. It takes a snail over two minutes to travel 12 inches, but your 5th grader can finish this worksheet in no time.