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Science Vocab

Vocabulary

TermDefinition
Force a push or pull
Gravity attracts all objects toward each other
law of universal gravitation states that every object in motion will stay at motion andany object at rest will stay at rest
mass the amount of matter in an object
weight the force of gravity on an object
inertia the tendency of an object to resist a change in motion
newtons first law of motion every object in the universal will attract each other
astronomy the study of space
axis the imaginary line that passes through the earths north and south poles
rotation earth spinning on its axis
revolution the movement of one object around another
orbit the path of earth around the sun
calendar a system of organizing time and dates
solstice the day when the sun is right over the equator longest day of the year
equinox night and day are equal
phases different shapes of the moon
eclipse moons shadow hits earths shadow
solar eclipse when the moon passes directly between the moon and earths shadow during a full moon
umbra the darkest part of the moons shadow
penumbra the lighter part of the moons shadow
lunar eclipse earth blocks sunlight from reaching the moon
tide the moons gravity acting on different parts of the earth
spring tide greatest difference between high and low tides
neap tides least difference between the high and the low tide
Created by: jacobe2014
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