Chapter 29& 30 Flashcards

0
Q

What planets is closer to the sun?

A

Mercury

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1
Q

Our solar system

A

Was formed from a nebula
Has planets that orbit the sun
Has eight planets- including four inner planets; including three outer planets
Has other objects including comets

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2
Q

What is the largest planet?

A

Jupiter

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3
Q

Which planets has been studied extensively for life?

A

Mars

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4
Q

What planets has the complex ring system?

A

Saturn

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5
Q

Our solar system about how many years ago?

A

4.6 billion years ago

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6
Q

Enormous cloud of gas, ice, dust… Called?

A

Nebula

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7
Q

Is our solar system heliocentric or geocentric?

A

Heliocentric with planets orbiting the sun in a counterclockwise

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8
Q

Planet with an extremely dense atmosphere?

A

Venus

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9
Q

Large canyon on mars?

A

Valles Marineris

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10
Q

Planet classification that orbits inside the asteroid belt?

A

Inner planet

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11
Q

Red planet

A

Mars

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12
Q

Planet classification that orbits outside the asteroid belt?

A

Outer planets

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13
Q

The order of the planets

Closest to farthest away

A
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
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14
Q

How does distance from the sun affect the speed of a planet?

A

Planets close to the sun it’s mass is closer to the center of the solar system which results in an increased orbit speed
Planets in outer orbits orbits mass is farther from the center of the solar system, slows down speed of orbit

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15
Q

The inner planets

A

Mercury, Venus, earth , mars

16
Q

Outer planets

A

Jupiter, Saturn, Uranus, Neptune

17
Q

Why are the planets close to the sun rocky and smaller?

A

High temperatures vaporized the light elements so the planets have rough surfaces

18
Q

Harsh environments where life exists on earth

A

Great pressure by volcanic vents- hot and dark
Permafrost areas in northeast Siberia- extreme cold
Mud in Mono Lake, CA- dark, lacking oxygen, large amounts of salt

19
Q

Which planets has the moon Titan?

A

Saturn, Titan is its largest moon

20
Q

Earths shape is?

A

Spherical

21
Q

Earth complete..?

A

Orbits the sun once a year

22
Q

Among Earth’s physical properties is its rotation, which takes one _____ to complete?

A

Day