English/Natural Science crossword

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Across
  1. 2. A very large bird that lives in the mountains.
  2. 4. A large body of saltwater.
  3. 5. We make this to cook and to keep warm.
  4. 7. A kind of arthropod with eight legs and two body sections.
  5. 8. Centipedes and millipedes belong to this subgroup of arthropods.
  6. 9. A kind of mollusc where the shell is divided into two parts called valves.
  7. 11. A dry place where not many plants live.
  8. 13. These molluscs have an internal shell, a prominent head, and tentacles.
Down
  1. 1. a small river.
  2. 2. The panda, the koala, and the rhino are all considered to be this.
  3. 3. When all the animals in a species have died, and none of them exist anymore.
  4. 6. A type of invertebrate with a soft body. Almost all have a shell.
  5. 10. A type of arthropod with a head, a thorax, and an abdomen. They have six legs and some have wings.
  6. 12. A place with a lot of trees.
  7. 14. A small mountain.