Science flash cards

The study of moon, stars, and other objects in space

the imaginary line that passes through earth’s center and the north and south poles, about which earth rotates on

the spinning motion of a planet on it’s axis

the movement of an object around another object

the path of an object as it revolves around another object in space.

the two days of the year on which the sun reaches its greatest distance

the two days of the year on which neither hemisphere is tilted toward or away from the sun

the attractive force between objects; its strength depends on their masses and the distance between them

the amount of matter in an object

the force of gravity on an object

the tendency of an object to resist a change in motion

Maria: dark, flat areas on the moon’s surface formed from a huge ancient lava flows

a large round pit caused by the impact of a meteoroid

chunk of rock or dust in space

the darkest part of a shadow

the part of a shadow surrounding the darkest part

the tide with the least difference between consecutive low and high tides

the tide with the greatest difference between consecutive low and high tides