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