Earth Day is April 22 — think you know the planets? Test your knowledge of the solar system in this fun and engaging lifestyle quiz — and see how well you do!

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

From Jupiter’s swirling storms to Neptune’s icy depths, planets across our solar system are orbited by a fascinating cast of ...

How many moons are in the solar system? Speaking of which, it's time to test your knowledge of our stellar neighborhood with our solar system quiz. If you need a hint, click the yellow button.

In this quiz, you’ll test your knowledge of Neptune's features, moons, and the science that keeps astronomers fascinated.

Solar System Quiz You got questions correct. The questions you answered incorrectly were: Which means you were correct.

If so, challenge a friend, or a family member, with this quiz. Have some fun as you take our eclipse quiz to see how much you know April 8: A special day Can't see the quiz? Open in a new browser.

Prepare to journey to the sixth planet from the Sun — Saturn, the celestial jewel of our solar system. Known for its ...

Explore space with these fun solar system worksheets. Kids will learn about planets, moon phases, and space exploration through hands-on activities. Perfect for home or classroom use, these ...

Learn more about the planets, asteroids, and comets in our solar system.

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.