earth vocab … lessons 1, 2, 3
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Earth Vocab … Lessons 1, 2, 3. Quiz#1- Wednesday Review study materials!!. a body that orbits a planet. satellite. An object that orbits the sun Large enough to have become rounded by its own gravity. planets. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Earth Vocab … Lessons 1, 2, 3](https://reader031.vdocument.in/reader031/viewer/2022032605/56812bd8550346895d904874/html5/thumbnails/1.jpg)
Earth Vocab…Lessons 1, 2, 3
Quiz#1- WednesdayReview study materials!!
![Page 2: Earth Vocab … Lessons 1, 2, 3](https://reader031.vdocument.in/reader031/viewer/2022032605/56812bd8550346895d904874/html5/thumbnails/2.jpg)
a body that orbits a planet.
satellite
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An object that orbits the sun Large enough to have become rounded by
its own gravity.
planets
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a streak of light produced when a small object burns up entering Earth’s atmosphere.
meteors
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is a cold mixture of dust and ice that gives up a long trail of light as it approaches the sun.
comet
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giant ball of hot gas Tiny points of light
stars
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Is a pattern or groups of stars in the sky.
constellations
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Imaginary line that passes through Earth’s center and the North and South poles
axis
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Spinning of the Earth and moon around its axis.
rotation
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It takes the Earth 365 ¼ days to complete one
Movement of the Earth around the Sun or the movement of the moon around the Earth revolution
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Earth moves around the sun in a regular, curved path called a(n)
Earth’s ______ brings it closer to the sun in January
orbit
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Caused by Earth’s tilted axis and its revolution around the sun
seasons
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If the Northern Hemisphere is tilted away from the Sun, what season is occurring?
winter
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What season occurs when part of Earth is tilted towards the Sun?
summer
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What seasons occur when the Earth is neither tilted toward or away from the Sun?
Spring & Autumn/Fall
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Sun appears farthest north of the equator and south each year
Longest day of the year in Northern Hemisphere and shortest day of the year in Southern Hemisphere
solstice
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The sun is directly overhead at the equator Means “equal night” 12 hours of daylight and 12 hours of night
equinox
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The Winter Solstice begins on
December 21 or 22
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The Spring Equinox begins on
March 20 or 21
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The Summer Solstice begins on
June 21 or 22
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The Fall Equinox begins on
September 22 or 23
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Attracts all objects to each other Keeps the Earth in an orbit around the sun Keeps the moon in an orbit around the Earth
gravity
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Amount of matter in an object Remains constant
mass
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Measure of the force of gravity on an object Changes depending on location
weight
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Every object in the universe attracts every other object
Law of universal gravitation
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Tendency of an object to resist a change in motion
Example: when a car is moving and suddenly stop; you keep moving forward
inertia
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An object at rest will stay at rest and an object in motion will stay in motion unless acted on by a force
Newton’s first Law of motion