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an instrument showing the time by the shadow of a pointer cast by the sun on to a plate marked with the hours of the day
sundial
a period of time equal to one twenty-fourth part of a day
hour
a dark area or shape produced by a body coming between rays of light and a surface
shadow
abbreviation meaning before noon from Latin ante meridiem
A.M.
abbreviation meaning after noon from Latin post meridiem
P.M.
shadow clocks only work when the sun is shining (true/false)
true
shadow clocks work because the sun is spinning (true/false)
false
Planets that spin slower than earth would have longer days, so the sun would be in the sky_________.
longer
Planets that spin faster than earth would have shorter days, so the sun would be in the sky_________.
shorter
Egyptians counted their finger segments and divided days into _____ hours of daytime and ____hours of nighttime.
12 and 12
Romans divided their day down the middle between ______ and _______.
sunrise and sunset
Romans started counting their hours at _______when the sun is highest in the sky.
noon
The opposite of noon is ______. (12:00 A.M.)
midnight
Romans called the line separating the day a _______.
meridiem
A.M. stands for_________ meridiem.
ante
P.M. stands for_________ meridiem.
post
