Research and Design Tech Ed B7/8

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