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DS 7E Science 3 > P6: Earth and Space > Flashcards

P6: Earth and Space Flashcards

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1
Q

What causes day and night?

A

The rotation of the Earth on its axis

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2
Q

How long does it take the Earth to orbit the Sun?

A

365 (and a quarter) days

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3
Q

How are all planets kept in orbit around the Sun?

A

The Sun’s gravitational pull

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4
Q

Which planet will take the longest to orbit the Sun - Mercury or Neptune?

A

Neptune

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5
Q

Name one thing a star does that a planet doesn’t.

A

Stars give out light

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6
Q

As the Earth orbits the Sun, what causes the seasons?

A

The tilt of the Earth’s axis

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7
Q

What causes a solar eclipse?

A

The Moon passes between the Sun and the Earth - blocking the Sun’s light from reaching the Earth

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8
Q

What are objects which orbit planets called?

A

Satellites (moons)

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9
Q

How long does it take the Moon to orbit the Earth?

A

28 days

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10
Q

Give 2 reasons why it’s (supposedly) hotter in Britain in Summer than Winter?

A
  1. More time spent in Sun light - so the land heats up

2. Sun’s rays are focused on a smaller area

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11
Q

KEYWORD: A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

A

Galaxy

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12
Q

KEYWORD: A fixed luminous point in the night sky which is a large, remote incandescent body like the Sun.

A

Star

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13
Q

KEYWORD: One rotation of the Earth (or any planet) on its axis

A

Day

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14
Q

KEYWORD: The time taken by the Earth to make one revolution around the Sun.

A

Year

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15
Q

KEYWORD: The force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

A

Gravity

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16
Q

KEYWORD: The natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.

A

The Moon

17
Q

KEYWORD: A body in orbit round the Earth or another planet. Artificial ones can be used to collect information or for communication.

A

Satellite

18
Q

KEYWORD: Caused by the Earth’s tilted axis as it orbits the Sun.

A

Seasons

19
Q

KEYWORD: The time taken for the Moon to orbit the Earth

A

(Lunar) Month

20
Q

KEYWORD: When all or part of the Sun is obscured by the Moon

A

Solar Eclipse

DS 7E Science 3 (11 decks)

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