Passenger Aircraft
Historic Aircraft
Apple Products
Inventions in Other Words
100


 Boeing 737

100


Wright Flyer

100


iPhone

100

What do we call a circular frame of hard material that may be solid or spoked and is capable of rotating on an axle?

Wheel

200


Boeing 747

200


SR-71 Blackbird

200


iPod Nano

200

What do we call a small, thin piece of metal with one pointed end and one flat end that is hit with a hammer, usually to fasten or join two objects?

Nail

300


Boeing 777

300


B-29 Superfortress

300


Macintosh

300

What do we call a a device for determining directions by means of a magnetic needle turning freely on a pivot and pointing to the magnetic north?

Compass

400


Airbus A380

400


Hindenburg

400


iMac

400

What do we call thin material produced by processing cellulose fibers in water, then draining, pressing and drying?

Paper

500


Bombardier CRJ

500


Gossamer Albatross

500

Newton

500

What do we call a transparent object with curved sides for concentrating or dispersing light rays?

Lens