general knowledge

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Across
  1. 2. - Has eight arms, but no hands (8)
  2. 3. - Ancient tomb in Egypt (6)
  3. 5. - Colorful arc after the storm (7)
  4. 6. - Black and white striped horse (5)
  5. 8. - Mountain that breathes fire (7)
Down
  1. 1. - Holds the world up (5)
  2. 2. - What we breathe to stay alive (6)
  3. 4. - Guides us through learning
  4. 7. - Longest river in the world (7)
  5. 9. - Where the laws are made (7)