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Elementary School cards > Solar System > Flashcards

Solar System Flashcards

0
Q

What is it called when the earth has made one full orbit around the sun?

A

A revolution

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1
Q

What is the path that the earth takes as it moves around the sun?

A

An orbit

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2
Q

How many days does it take the earth to make one full revolution around the sun?

A

About 365 days (one year)

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3
Q

What causes the earth to have seasons?

A

It revolves around the sun on a tilted axis

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4
Q

What gives the earth day and night?

A

The rotation of the earth as it travels around the sun

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5
Q

Why does the sun appear to rise and set?

A

The rotation of the earth on its axis

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6
Q

How long does it take the earth to complete one full rotation?

A

24 hours

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7
Q

How many days does it take the moon to revolve around the earth?

A

About one month

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8
Q

Why does the moon look different throughout the month?

A

The positions of the earth and moon change throughout the month

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9
Q

What is earth’s moon?

A

A small rocky satellite (rock and rock fragments)

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10
Q

How large is earth’s moon compared to earth?

A

It’s about one-fourth (1/4) the diameter of the earth and one-eightieth (1/80) it’s mass

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11
Q

What is the moon like?

A

Extremes of temperature
No atmosphere
No life
No water

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12
Q

Why do the moon and sun appear to be about the same size?

A

Because the sun is so much farther away

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13
Q

What is the sun made of?

A

hot gases

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14
Q

What does the sun look like?

A

An average sized yellow star

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15
Q

How large is the sun compared to the earth?

A

About 110 times the diameter of the earth

16
Q

How old is the sun?

A

Approximantly 4.6 billion years

17
Q

What is our solar systems natural sorce of heat?

A

The sun

18
Q

How many planets are in our solar system and revolve around the sun?

A

Eight

19
Q

Why do the planets and their moons orbit the sun in our solar system?

A

The sun exerts a gravitational pull on the planets

20
Q

List the planets in the correct order, moving away from the sun?

A

Mercury Venus earth mars Jupiter Saturn Uranus Neptune Pluto

21
Q

If our nine planets are grouped as inner outer planets what position is earth?

A

The third inner planet

22
Q

Who far is earth from the sun?

A

150 kilometers

23
Q

What is earth like?

A

A geologically active planet with a surface that is constantly changing a rocky inner panel

24
Q

What is earth’s atmosphere like?

A

Large amounts of life supporting water oxygen rich atmosphere

25
Q

How does earths atmosphere protect earth?

A

It blocks out most of the suns damaging rays

26
Q

Why is earth different from other planets?

A

It has air water soil and life

27
Q

What belief did ptolemy and aristotle, early astronomers have about the solar system?

A

The earth centered model

28
Q

What was the earth centered model?

A

The sun revolved around the earth

29
Q

What is the corectt model of our solar system?

A

The sun centered model

30
Q

What is the sun center model?

A

The planets that revolve around the sun

31
Q

Which scientist invented the sun centered model?

A

Nicolas Copernicus

32
Q

Which two scientists believed in the sun centered model?

A

Nicolas Copernicus and galileo galili

33
Q

Who used the first telescope to study the planets and confirm the sun centered model?

A

Galileo galili

34
Q

What added to our understanding of the moon?

A

The NASA Apollo missions

35
Q

What is the name of the first tool that is used for making observations in orbit?

A

Hubble telescope

36
Q

What does our understanding of the sun, moon, and the solar system continue to change

A

New scientific discoveries

37
Q

Who was the first human to walk on the moon?

A

Neil Armstrong

38
Q

Why are space shuttles better than earlier space vehicles?

A

Space shuttles can be used many times

Elementary School cards (25 decks)

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