From glaciers to mountains to wetlands, our planet has lots of different landforms. Help your child learn all about them with this fun earth science crossword.

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

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.

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.

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

Third grader today, astrophysicist tomorrow! Let your child research their planet of choice, and discover everything from the number of moons to temperature.

Renewable energy is extremely important for the Earth's future! Test your child's knowledge of renewable resources with this review sheet.

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

Milky Way: candy bar or galaxy of 100 to 400 billion stars?

Does your learner ever wonder what makes the Earth dark at night and bright during the day?

This worksheet teaches all about the planet Saturn and its placement in the Solar System.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.