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science vocab
sec 1 and 2
Question | Answer |
---|---|
astronamy | the study of the stars, moon and sun |
solstice | 2 says each year when the noon sun is over head at either 23.5 degrees north or south |
latitude | a measurment of distance from the equator expressed in degrees north or south |
equinox | 2 days of the year when the noon sun is directly overhead at the equator |
vernal equinox | spring equinox (occurs aroubd march 21st) |
autumnal equinox | fall equinox (occurs around september 23rd) |
rotation | an object spinning on its axis |
revolution | the movement of one object around another |
orbit | the path an object takes as it revolves around another object |
phases | different shapes of the moon you see from earth |
eclipse | when an object in space comes between the sun and a 3rd object |
solar eclipse | when the moon passes between the earth and sun |
umbra | darkest part of the moon |
penumbra | largest part of the moon's shadow |
lunar eclipse | when earth is directly between the moon and the sun. (occurs at a full moon) |
tides | the rise and fall of water |
gravity | the force pulls the moon and the earth towards each other. |
spring tides | tides with the greatest difference between high and low tides. |
neap tides | tides with the least difference between high and low tides |