The spinning of a body, such as a planet, on its axis is called rotation

The time it takes a planet to complete one full rotation on its axis is called a day.

The motion of a body that travels around another body in space is called revolution

Earth completes a full revolution around the sun in 365 ¼ days, or about one year

is characterized by a pattern of temperature and other weather trends

sunlight shines equally on the Northern and Southern Hemispheres

the area of sunlight is at a maximum in one hemisphere and at a minimum in the other hemisphere

Six of the planets in our solar system have smaller bodies that orbit around each of them

All bodies that have mass exert a force that pulls other objects with mass toward themselves

From Earth, the moon’s appearance changes. As the moon revolves around Earth, the portion of the moon that reflects sunlight back to Earth changes, causing the moon’s appearance to change. These changes are called lunar phases

s an event during which one object in space casts a shadow onto another. On Earth, a lunar eclipse occurs when the moon moves through Earth’s shadow

is the darkest part of a shadow

Just before a lunar eclipse, sunlight streaming past Earth produces a full moon

are daily changes in the level of ocean water

is the difference between the levels of ocean water at high tide and low tide

Spring tides happen when the sun, the moon, and Earth form a straight line

s happen when the sun, Earth, and the moon form a 90° angle

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unit 4

The Earth-Moon-Sun System

Question	Answer
rotation	The spinning of a body, such as a planet, on its axis is called rotation
day	The time it takes a planet to complete one full rotation on its axis is called a day.
revolution	The motion of a body that travels around another body in space is called revolution
year	Earth completes a full revolution around the sun in 365 ¼ days, or about one year
season	is characterized by a pattern of temperature and other weather trends
equinox	sunlight shines equally on the Northern and Southern Hemispheres
solstice	the area of sunlight is at a maximum in one hemisphere and at a minimum in the other hemisphere
satellite	Six of the planets in our solar system have smaller bodies that orbit around each of them
gravity	All bodies that have mass exert a force that pulls other objects with mass toward themselves
lunar phases	From Earth, the moon’s appearance changes. As the moon revolves around Earth, the portion of the moon that reflects sunlight back to Earth changes, causing the moon’s appearance to change. These changes are called lunar phases
eclipse	s an event during which one object in space casts a shadow onto another. On Earth, a lunar eclipse occurs when the moon moves through Earth’s shadow
umbra	is the darkest part of a shadow
penumbra	Just before a lunar eclipse, sunlight streaming past Earth produces a full moon
tide	are daily changes in the level of ocean water
tidal range	is the difference between the levels of ocean water at high tide and low tide
spring tide	Spring tides happen when the sun, the moon, and Earth form a straight line
neap tide	s happen when the sun, Earth, and the moon form a 90° angle

Created by: user-1979211

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