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4th grade navagational tolls vocabulary

Terms in this set (25)

explorer
person who travels to search scientific information or regions
navigator
to keep the ship organized and don't get lost
conquistidor
A Spanish conqueror of the Americas during the Sixteenth Century.
capsize
when the ship turns upside down
helmsman
a person who steers a ship
boatswain
a petty officer on a merchant ship who controls the work of other seamen
steward
you are in charge of the food and water
starboard and port
left and right
for aft
front back
oriteering
going to point to point using a map and a compass
scurvy
1. disease due to lack of vitamin C; 2. contemptible; rascally
malaria
A disease caused by mosquitoes implanting parasites in the blood.
frontiersman
a settler who pushed west into unexplored areas
crows nest
platform for a look out near the top of the mast
loadstone
the first compass made it points true north
dividers
a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements
back staff
an instrument used to measure the altitude of the sun.
traverse board
A tool that recorded the course of a ship during a four-hour period of time (the watch). It consisted of a wood piece marked out with a compass rose and eight holes for pegs as that point on the compass was run by the ship., This was used to measure the course of the ship/ A bell would ring every half an hour and the person watching would move the pegs on the board to the new location, used with an hour glass and a compass to help keep track of the ship's course
astrolabe
from 200bc it measures horizon and sun
sextant
A sextant is a tool for measuring the angular altitude of a star above the horizon.
quadrant
A quarter of a circle or of its circumference
armillary
like or composed of rings
cross staff
device that sailors used to determine latitude by measuring the angle of the sun or pole star above the horizon
nocturnal
Adj. of or occurring in the night; under cover of darkness
sandglass
an hourglass
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