Summer!!!

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Across
  1. 4. checkered blanket park activity ruined by ants
  2. 6. a cold treat you can make in science class
  3. 7. sunny umbrella
  4. 8. DIY building on the beach
  5. 9. slippery slides and a lazy river can be found here
Down
  1. 1. Cl on the periodic table
  2. 2. beach shoes
  3. 3. topical cream alternative to 7-across
  4. 5. something you don’t do over summer break