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.

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

Children get to know a few geology terms in this landform word search puzzle.

Ever lay on your back to look at the clouds? Now you'll know which types of cloud make up all those silly shapes you see with this diagram.

Brrr, it's cold outside! In this worksheet, kids practice reading thermometers to figure out what the temperature is.

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

Invite your child to dream big and design their very own planet. Encourage both creativity and scientific speculation with this fun worksheet.

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

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.

Discover the inner workings of basic earth science in this worksheet on temperature.

Do you wish to boldly go where no astronaut has ever gone? Blast off with this coloring page that features four new planets for you and your crayons to explore.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

Understand nature's visual cues for the shifting of the seasons with this tree seasons match-up activity!

Worm your way through this soil maze, which doubles as a fun way to review the names of the different soil layers.

Here are listed a handful of natural resources, for kids to classify as renewable resources and nonrenewable resources.