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25 terms

ES Chapter 23

STUDY
PLAY
waxing
When the amount of the Moon's lighted surface seen on Earth increases
ellipse
An elongated, closed curve
third quarter
Waning Moon phase in which only one-half of the lighted side of the Moon can be seen from Earth
sphere
A round, three-dimensional object whose surface is the same distance from its center at all points
Moon phases
The changing appearances of the Moon as seen from Earth
full moon
When all of the Moon's surface that faces Earth is lit up
solar eclipse
When the Moon temporarily blocks the sunlight reaching Earth
first quarter
Waxing Moon phase in which one-half of the Moon's lighted side can be seen from Earth
equinox
Reached when the Sun's position is directly over Earth's equator
axis
The imaginary line around which a planet such as Earth spins
new moon
When the Moon is between Earth and the Sun and cannot be seen
rotation
The spinning of Earth on its axis
lunar eclipse
When Earth's shadow falls on the Moon
waning
When the amount of the Moon's lighted side that can be seen becomes smaller
solstice
The point at which the Sun reaches its greatest distance north or south of the equator
revolution
Earth's yearly orbit around the Sun
umbra
Part of the Moons shadow that you must be in to see a total solar eclipse
24 hours
Earth rotates on its axis about once every ______.
rotation
Night and day on Earth are caused by Earth's
June
The summer solstice begins in _____ in the northern hemisphere
December
The summer solstice begins in _____ in the southern hemisphere
longer
Daylight hours are ______ for the hemisphere tilted toward the Sun.
lunar
You are more likely in their lifetime to see a total ______ eclipse
magnetic
If you followed a compass needle, pointing north, you would end up at the _________ north pole of Earth.
July
Earth is farthest from the Sun in _________