chemistry

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Across
  1. 5. a person who manages a home and often raises children instead of earning money from a job
  2. 7. a very short period of time
  3. 9. the scientific study of the basic characteristics of substances and the ways in which they react or combine
  4. 10. the process of protecting someone or something and providing what that person or thing needs
Down
  1. 1. continuing in one direction without bending or curving
  2. 2. something, such as a funny story or trick, that is said or done in order to make people laugh
  3. 3. not easy to bend, cut, or break
  4. 4. to give someone knowledge or to train someone; to instruct
  5. 6. to come out of a mother's body
  6. 8. having strong feelings of sadness or sympathy, because of something someone has said or done