Technology & Engineering Rockets/transportation

1. an object designed to produce some directional motion when in movement relative to the air.
3. space flights that use rockets to place payloads into orbit.
5. the lowest region of space above the earth in which spacecraft and satellites operate.
7. rockets that use a powder or spongelike mixture of fuel and oxidizer.
10. the last layer of space above the earth that blends directly into outer space.
11. a type of space travel represented by communication satellites and space shuttles.
14. aviation industry that makes money by transporting people and cargo in airplanes
15. a vehicular system that produces a force to propel the vehicle from its starting point
16. rigid airships with metal frames covered with skins of fabric

1. the farthest distance away from the earth.
2. rockets with two tanks. One contains the fuel, and the other contains oxygen.
4. the layer that extends from 22 to 50 miles (35 to 80 km) above the earth.
6. the point at which an orbit comes closest to earth.
8. the force that holds or lifts a craft in the air. It is critical for all flight.
9. a type of orbit in which a satellite travels the same speed the earth is turning.
12. the body of an aircraft that contains the flight crew passenger, and cargo units.
13. a space flight that carries human beings into space and returns them safely to the earth.