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Unit 4

Vocabulary

TermDefinition
season characterized by a pattern of temperature and other weather trends.
equinox sunlight shines equally on the Northern and Southern Hemispheres.
solstice he area of sunlight is at a maximum in one hemisphere and at a minimum in the other hemisphere.​
rotation The spinning of a body, such as a planet
day The time it takes a planet to complete one full rotation
year Earth completes a full revolution around the sun in 365 ¼ days
revolution The motion of a body that travels around another body
satellite A body that orbits a larger body
gravity All bodies that have mass exert a force that pulls other objects with mass toward themselves
lunar phases the portion of the moon that reflects sunlight back to Earth
eclipse is an event during which one object in space casts a shadow onto another.
umbra is the darkest part of a shadow
penumbra Around it is a spreading cone of lighter shadow
tides 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 Tides that have the largest daily tidal range
neap tides Tides that have the largest daily tidal range
Created by: user-1935855
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