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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 _________

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