W O R D LIST
algebra
(n) a type of mathematics that uses letters and signs
balloon
(n) a large bag full of hot air or gas, with a basket below it
barrel
(n) the part of a gun that bullets are shot through
battery
(n) a container that supplies electrical power
bow
(n) a curved piece of wood with a string, used for shooting
cannon
(n; pi cannon) a large gun fixed to the ground or on wheels
cell phone
(n) a telephone that you can carry with you
compass
(n) an instrument that shows the direction of north
equation
(n) a mathematical “sentence” where two quantities are equal
floppy disk
(n) a small flat piece of plastic on which you can keep
information from a computer
gunpowder
(n) materials that cause explosions when mixed together
helicopter
(n) a flying machine with long thin metal parts on top that
turn fast
key
(n) something that you press to produce, for example, letters on a
computer or sounds on a piano
navigate
(v) to find how to go to a place, especially by using maps
nut
(n) a small metal ring that turns and holds things tightly together
parachute
(n) a piece of cloth that slows your fall from an airplane
processor
(n) the central “thinking” part of a computer
propeller
(n) the turning metal pieces that pull an airplane forward
radar
(n) radio waves which can find ships and airplanes
rifle
(n) a gun with a long barrel that you fire from your shoulder
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