Did you know that ocean water is salty, but river water is not? Find out how fresh and salt water mix together in this water cycle worksheet.

Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

Start from water cycle precipitation from clouds and match parts of the cycle to this clear colorful image of a simple water cycle, using the helpful paragraph.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

Can you and your child come up with a few ways to conserve water in your home? This printable starts you off with five ways to conserve water.

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

What happens to water as it travels through mushy, smushy wetlands and swamps? Find out all about the water cycle and fill in scientific terms in the swamp.

Discover how water flows in this informative environmental science worksheet!

Discover the impact of water on Earth’s landscape with this fourth-grade erosion worksheet!

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

Find out the the cool science behind ice cubes with this fun worksheet.

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

Decide which plants could live in a grassland with this second- and third-grade worksheet!

Determine which plants would survive in a pond with this second- and third-grade worksheet!

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

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

Discover examples of weathering, erosion, and deposition with this fourth-grade worksheet!

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

What is the purpose of a hard shell or a long neck? Discover different adaptations with this matching worksheet for second and third graders!

Dive into a coral reef habitat with this second- and third-grade worksheet!

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Warm up your scientific thinking with this colorful worksheet!