The Solar System

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Across
  1. 2. The force that keeps a planet moving and not falling The force that keeps a planet moving and not falling.
  2. 7. The branch of science dealing with celestial objects , space and the physical universe as a whole.
  3. 8. Small particles of masher in the solar system that enter Earth’s atmosphere and can be bright light in the night sky, also known as shooting stars.
  4. 10. The collection of 8 planets and their moons in orbit around the Sun, together with smaller bodies.
  5. 12. The largest planet in our solar system.
  6. 13. Big balls of frozen gas, dust and rock orbiting the Sun.
  7. 14. The path that an object takes in space when it goes around a star, a planet, or a moon.
Down
  1. 1. Rocky space objects at varying sizes between the orbits of Jupiter and Mars.
  2. 3. Layer of gas that surrounds a planet.
  3. 4. Our solar system is part of this galaxy.
  4. 5. Covers 70% of Earth’s surface.
  5. 6. Now called a dwarf planet.
  6. 9. An event in which two or more bodies exert forces on each other in a short time. It is closer in meaning to impact.
  7. 11. The closest planet to the Sun.