Challenge yourself!

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Across
  1. 4. Longest river in the world.
  2. 5. Largest continent.
  3. 6. Coldest continent.
  4. 8. Largest desert in the world.
  5. 9. Supercontinent that existed 200 million years ago
Down
  1. 1. Largest island in the world.
  2. 2. Tallest mountain in the world.
  3. 3. You always float in this sea.
  4. 6. This river flows through the rainforest in Brazil.
  5. 7. Hottest continent on Earth.