Research and Design Tech Ed B7/8

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Across
  1. 4. An experimental model that you test
  2. 5. A drawing people use to get a rough idea
  3. 8. a rules for something to make things fair
  4. 9. A repeated design that you put on something
  5. 10. a gas that you exhale
Down
  1. 1. An essential thing to use when designing airplanes to make move easily through air
  2. 2. Drag cars need to this to decrease drag
  3. 3. A small sum of the big picture
  4. 6. If too much weight is applied on a building beyond its _______, it will collapse
  5. 7. The friction that slows cars down