Crossword W7(3)

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Across
  1. 4. A person you do not know
  2. 5. Everything that exists, including all stars, planets, galaxies, and space
  3. 7. A pain in your head, often caused by stress, sickness, or lack of sleep
Down
  1. 1. Physical activity that keeps your body strong and healthy, like running, swimming, or playing sports.
  2. 2. Very, very old
  3. 3. The condition of your body and mind
  4. 6. The planet we live on; the third planet from the sun and the only known planet with life.