| A | B |
|---|
| Internal Combustion Engine | explosion to power car happens on the inside |
| Cylinder | key to internal combustion engine |
| Intake Stroke | the engine begins with this |
| Piston | forced down in engine from pressure |
| Compression Stroke | piston moves up to compress fuel and air mixture |
| Combustion Stroke | happens when piston reaches the top of its upward stroke |
| Exhaust stroke | final action in the cycle, pushing exhaust through tailpipe |
| Catalytic Converter | changes carbon monoxide into carbon dioxide |
| Weight | downward force that Earth's gravity exerts on all objects |
| Drag | resistance of air against anything that moves through it |
| Lift | an upward pull |
| Thrust | any force that moves a plane forward |
| Airfoil | wing's shape makes air moving above wing move faster than air passing below creating lift |
| Jet Engine | sucks air in the front and spits it out the back |
| Rudder | moveable flap on the plane's fin, controls turns |
| Elevators | a hinged flap, when lowered makes plane descend |
| Ailerons | a hinged flap, controls turns |
