Activity 7.4

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Across
  1. 4. an idea or suggestion that is based on known facts and is used as a basis for further investigation
  2. 6. the act of noticing something, such as a phenomenon, often by means of an instrument, and making a record of the resulting information
  3. 7. physical matter or material
  4. 8. an occurrence, circumstance, or fact that can be observed with the senses
Down
  1. 1. the theory of the gradual development of the characteristics of plants and animals over many generations
  2. 2. a general conclusion that is drawn from particular examples or evidence
  3. 3. the process to reach a conclusion after thinking about all the facts
  4. 5. systematic knowledge of the physical world gained through observation and experimentation