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T5.3PhaseEclipseTide

Topic 5, Lesson 3 Phases/Eclipses/Tides

TermDefinition
neap tide A tide with the least difference between high and low tide that occurs when the sun and moon pull at right angles to each other.
spring tide a tide with the greatest difference between high and low tide that occurs when the sun and the moon are aligned with Earth at the new moon and the full moon
twice a day How often do high tides occur?
twice a day How often do low tides occur?
twice a month How often do spring tides occur?
twice a month How often do neap tides occur?
180 degrees (earth moon sun in straight line) spring tide =
90 degrees (earth moon sun form 90 deg angle) neap tide =
new and full Phases of the moon for a spring tide
first quarter and last quarter Phases of the moon for a neap tide
umbra darkest part of the shadow
penumbra larger; less dark part of the shadow
Solar Eclipse when the moon passes directly between the sun and earth
New Moon phase of the moon where the moon is not visible; moon phase in which a solar eclipse can occur
Lunar Eclipse eclipse where earth is directly between the moon and the sun; can only occur during a full moon
Phases of the moon in order new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent
tides rise and fall of ocean water that occurs approximately every 12.5 hours
eclipse when an object in space comes between the sun and a third object, casting a shadow on the third object. Types: solar and lunar
corona the outermost layer of the sun's atmosphere; only visible during a total solar eclipse
near side only side of the moon visible to us because the moon is tidally locked to Earth and rotates and revolves at the same rate
far side side of the moon never visible to us on Earth because the moon is tidally locked to Earth and rotates at the same rate as it revolves
Created by: DanetteWeisman
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