Terms
More Terms
How We Move
Calendars
Seasons
100
a group of stars organized in a recognizable pattern
constellation
100
a system for measuring intervals of time by dividing it into days, weeks, months, and years
calendar
100
the experiment that first gave evidence of the Earth's rotation was
Foucault's pendulum
100

Earth's revolution around the sun takes 365 1/4 days. This is why we have

Leap Years
100
the Northern Hemisphere has the most hours of daylight at the
summer solstice
200
the spin of a body on its axis
rotation
200
the mothion of a body around another body in space
revolution
200
The Coriolis effect is evidence of
Earth's rotation on its axis
200
Who created leap years
Julius Ceasar
200
this is where daylight savings time is unnecessary
near the equator
300
curving of the path of wind belts and ocean currents
Coriolis effect
300
the point on Earth where the date changes
International Date Line
300
The tilt of the Earth's axis
23.5 degrees
300
Our current calendar is most like that of the ancient
Romans
300
The Northern Hemisphere has the fewest daylight hours at the
winter solstice
400
the moment when the sun appeats to cross the celestial equator
equinox
400
the point at which the sun is as far north or as far south of the equator as possible
solstice
400
A constellation's changing position in the sky over a period of several weeks is evidence of  
Earth's revolution around the sun
400
If it is Saturday to the east of the International Date Line, what day is it to the west of the line?
Sunday
400
the beginning of spring in the Northern Hemisphere is marked by
the vernal equinox
500
the point in a planet's orbit at which the planet is closest to the sun
perihelion
500
the point in a planet's orbit at which the planet is farthest from the sun
aphelion
500
When Earth is 147 million km from the sun, it is at its
perihelion
500

Each of Earth's standard time zone covers about

(how many degrees?)

15

(360 divided by 24)

500
The moment when the sun appears to cross the celestial equator is a(n)
equinox
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