Lecture at the science museum NL3

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Across
  1. 2. Investigation, study.
  2. 3. Paper with information about product or event.
  3. 5. How something affects something else.
  4. 7. To make something less or smaller.
  5. 9. Something based on methods of science.
  6. 10. To make a product known to sell it.
  7. 11. Powder or liquid used for cleaning.
Down
  1. 1. An answer you give without knowing all facts.
  2. 4. Presentation on a subject given by teacher.
  3. 5. New idea, creation.
  4. 6. Study and knowledge of the natural world.
  5. 8. A person studying the natural world.