Isaacs crossword

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Across
  1. 2. An opening in Earth’s surface that can erupt
  2. 4. —/ a big cat with a striped coat
  3. 7. A colorful thing that sometimes appears after rain
  4. 8. — A sparkling stone known for its hardness
  5. 9. A huge expanse of salt water
  6. 12. Something that travels around the sun
Down
  1. 1. A structure with triangular sides
  2. 3. A place where you can get books
  3. 5. A small bird known for its reddish chest
  4. 6. massive collection of stars, gas, and dust
  5. 10. tool that helps you find your way
  6. 11. dry place that gets very little rain