Our Earth

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Across
  1. 3. An ice-age animal similar to an elephant.
  2. 5. a massive group of stars and planets in space.
  3. 8. when all members of a species have disappeared.
  4. 9. The way living things slowly change over a long period.
  5. 10. An animal with hair or fur that feeds its babies milk.
  6. 11. Something new that a person creates.
  7. 13. a rock from space that burns up in the Earth’s sky.
  8. 14. A hollow space in the ground.
  9. 16. A group of people who share a culture and lifestyle.
Down
  1. 1. The hard remains or shapes of plants or animals found in rocks.
  2. 2. A person who travels to new places.
  3. 4. A large rock that moves around the Sun in space.
  4. 6. The layer of air and water around the Earth.
  5. 7. a tool we use to observe stars and planets.
  6. 12. A sudden shaking of the ground.
  7. 15. a mountain that erupts hot rocks and lava.