The solar system

3. A natural satellite that orbits a planet.
4. A large astronomical body orbiting a star.
5. A large, self-luminous ball of gas that generates heat and light through nuclear fusion.
9. PLANET A planet that is primarily composed of silicate rocks or metals, like Earth or Mars.
10. SYSTEM The gravitationally bound system of the Sun and the objects that orbit it.

1. An icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.
2. The changes in the visible shape of the Moon, Venus, and Mercury.
3. A streak of light in the night sky produced by a small particle of space debris burning up in the Earth's atmosphere.
6. A small, rocky body orbiting the Sun, typically found in the main belt between Mars and Jupiter.
7. GIANT A large planet composed mainly of hydrogen and helium, such as Jupiter or Saturn.
8. An astronomical event that occurs when one celestial body is temporarily hidden by another.
10. The star at the centre of the Solar System.