Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

Track down some of the most famous animals of the Amazon -- and other places -- with this rainforest coloring page that doubles as a life-science lesson.

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.

You have a lot in common with all the other humans on this planet. You all have noses and arms and fingernails, but what makes you different?

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

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.

Dinosaurs and other creatures don't exist anymore! Learn the names of some extinct animals, and look for them in this fun wordsearch puzzle.

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

Color, cut out, and play with these fun animal finger puppets as your nature lover learns more about prairie dogs, bison, and other animals of the grasslands.

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

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!

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.

Blue whale facts include that calves weigh up to three tons at birth and adults can be as heavy as 200 tons. Get other cool blue whale facts on this worksheet.

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

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

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.

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.

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

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