Compound nouns

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Across
  1. 4. Before heading to the beach, don't forget to apply some ________ to protect your skin.
Down
  1. 1. I bought these postcards and a keychain from the _______ near the museum.
  2. 2. During the city tour, our ______ explained the history of each landmark we visited.
  3. 3. Wearing a _______ is a great way to shield your eyes from the sun while watching the game.