Earth and Space Flashcards

1
Q

what 2 things keep the earth

in orbit around the sun

A

forward motion and gravity

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2
Q

what direction does earth travel around the sun

A

counter clockwise

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3
Q

how far is earth from the sun

A

93 million miles

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4
Q

what causes earths seasons

A

earths tilt and rotation

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5
Q

how long does it take the moon to go around the earth

A

28 days

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6
Q

what causes tides

A

the moons pull on earths water

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7
Q

what is a spring tide

A

the high tides are higher than usual and the low tides are lower than usual

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8
Q

whats a neap tide

A

the tide would be all around the same

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9
Q

list the planes in order

A

mercury venus earth mars jupiter saturn uranus neptune

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10
Q

closes to the sun

A

mercury

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11
Q

has seasons like earth

A

mars

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12
Q

roles on its side

A

uranus

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13
Q

who saw mountains on the moon

A

galileo galilei

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14
Q

hottest planet

A

venus

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15
Q

furthest from the sun

A

neptune

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16
Q

large visible rings

A

saturn

17
Q

largest planet

A

jupiter

18
Q

who thought earth was geocentric

A

ptolemy

19
Q

wrote laws of gravity

A

isaac Newton

20
Q

thought the sun was the center heliocentric

A

Nicolas copernicus