Fun with Science

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Across
  1. 1. The Sun is a _____.
  2. 4. ____ is the third planet from the sun in the solar system.
  3. 6. _____ won the Nobel Prize in Physics.
  4. 7. How many planets are there in the solar system?
Down
  1. 1. What was used to see the time before watches and clocks invented?
  2. 2. ______ study space from Earth.
  3. 3. World ____ day is celebrated on 28th of February.
  4. 5. People donates _____ to NGO's.