14. Solar system Flashcards

1
Q

Describe the only star in our solar system.

A

The sun is a star made up of a very hot ball of gas that gives off heat and light.

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2
Q

What constitutes the solar system?

A

The star and all objects that orbit around it.

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3
Q

Names the 8 planets

A

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

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4
Q

How are planets different to stars.

A

Planets don’t give out heat and light (but only reflect some of it)

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5
Q

Name the shape of an orbit around the sun.

A

Ellipse

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6
Q

What are asteroids?

A

Chunks of rock that travel around the sun.

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7
Q

Where do we find the asteroid belt?

A

Between the orbits of Mars and Jupiter.

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8
Q

Name the 4 rocky planets.

A

Mercury, Venus, Earth and Mars.

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9
Q

What is a moon?

A

A rocky object that orbits a planet.

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10
Q

Which planet has no atmosphere (an average temp of 168 C and some evidence of ice)?

A

Mercury

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11
Q

Which planet has a thick atmosphere of carbon dioxide which traps the suns heat and makes it extremely hot (500 C)?

A

Venus

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12
Q

Which planet is known as the ‘blue planet’ and why?

A

Earth because of the water in the oceans and atmosphere appear blue from space.

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13
Q

Which is the ‘red planet’ and why?

A

Mars because its covered in red dust.

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14
Q

Which planet is so big that all the others could fit inside it?

A

Jupiter

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15
Q

Which planet has rings made from frozen water

A

Saturn

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16
Q

Which planet is called the ‘ice giant’

A

Uranus

17
Q

Which gas planet has methane in its atmosphere?

A

Neptune.

18
Q

How long does earth take to orbit the sun once?

A

365 1/4 days

19
Q

Which planets take less than a year to orbit the sun?

A

Mercury and Venus

20
Q

Which planets travel fastest?

A

Those closest to the sun

21
Q

If the moon doesn’t emit light, how can we see it?

A

It reflects light from the sun

22
Q

Describe the surface of our moon.

A

There are flat plains, mountains and deep craters caused by meteors hitting it.