Science

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Across
  1. 2. What is the name of the river which was sent by NASA to the planet Mars?
  2. 3. Pattern in the night sky formed by the prominent stars are known as?
  3. 8. Which metal is used in aircrafts for it's less weight?
  4. 10. What does DNA stand for?
  5. 11. What is the atomic number of gold?
  6. 12. Graphite is made up of which element?
Down
  1. 1. Bananas have which radioactive element?
  2. 4. Which famous scientist had difficulty in speaking until the age of 4 years?
  3. 5. Which is the nearest star to the planet Earth?
  4. 6. Pencil leads are made up of which compound?
  5. 7. What is a Dutch perspective glass?
  6. 9. Who invented the first telescope?