Lesson 8 Vocab

123456789
Across
  1. 3. pulled to itself
  2. 4. to give out one piece at a time
  3. 6. possible
  4. 8. telling what something is
  5. 9. pieces of equipment that detect changes in heat, light, sounds or motion
Down
  1. 1. taking too much time or supplies to produce or reach results
  2. 2. the use of imagination
  3. 5. The first model of an invention that tests if it will work
  4. 7. efforts to try and do something