Solar system

2. The curved, repeating path a celestial object (such as a planet, moon, or artificial satellite) takes as it revolves around another object in space due to gravity.
5. The smallest and closest planet to the Sun in our solar system. It is a rocky, cratered world with no atmosphere to trap heat, resulting in extreme temperature fluctuations.
6. The sixth planet from the Sun, widely recognized for its prominent, spectacular ring system made mostly of ice particles and rocky debris. It is the second-largest gas giant in the solar system.
7. A small, icy celestial body that orbits the Sun. As it gets closer to the Sun, its ice vaporizes, releasing gas and dust that form a glowing coma (head) and a long, bright tail.
9. The fifth planet from the Sun and the largest planet in the solar system. It is a massive gas giant primarily composed of hydrogen and helium.
10. The third planet from the Sun and the only astronomical body known to harbor life. It has an active atmosphere, liquid water covering most of its surface, and a dynamic, rocky crust.

1. A natural satellite that orbits a planet. When capitalized ("The Moon"), it refers to the specific natural satellite that orbits Earth.
3. The second planet from the Sun. It is a terrestrial planet known for its thick, toxic, carbon-dioxide-heavy atmosphere that traps heat, making it the hottest planet in the solar system.
4. The star at the center of our solar system. It is a hot, glowing ball of hydrogen and helium that provides the gravity holding the solar system together, as well as the light and heat necessary to sustain life on Earth.
8. The fourth planet from the Sun, often called the "Red Planet" due to iron oxide (rust) on its surface. It is a cold, rocky, desert world with the largest volcano and deepest canyon in the solar system.