Solar System Flashcards

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1
Q

Nebula

A

A large cloud of gas and dust in interstellar space; a region in space where stars are born or where stars explode at the end of their lives

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2
Q

Solar Nebula

A

The Nebula that formed our solar system

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3
Q

Nuclear Fusion

A

The combination of the nuclei of small atoms to form a larger nucleus; releases energy

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4
Q

Sunspot

A

a spot on the sun that is darker than the rest

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5
Q

Astronomical Unit

A

the average distance between the earth and the sun

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6
Q

Terrestrial Planets

A

one of the highly dense planets nearest to the sun

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7
Q

Pro-grade Rotation

A

Counterclockwise spin from the north pole

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8
Q

Retrograde Rotation

A

Clockwise spin from the south pole

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9
Q

Gas Giant

A

A big giant planet made of gas

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10
Q

Satellite

A

a thingy that revolves around the earth

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11
Q

Phase

A

A stage in somethings life

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12
Q

Eclipse

A

when the moon covers the sun

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13
Q

Comet

A

The thing that flies through the sky

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14
Q

Asteroid

A

A rock floating through space

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15
Q

Asteroid Belt

A

A group of asteroids

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16
Q

Meteroid

A

A small rocky body that travels through space

17
Q

Meteorite

A

a meteoroid that reaches earth without burning up

18
Q

Meteor

A

A rock burning up in earths atmosphere