How do scientists know that the moon once had a molten core?

Maria on the moon could have only formed from molten rock

Where does the symbol for degrees come from?

The Babylonian symbol for the sun

When Earth or the moon blocks light from reaching the other

What causes wandering poles?

Movement in Earth’s crust and mantel

Gravitational pull of the moon and sun on the Earth

Before the Apollo missions, there were theories about where our moon came from. What are they?

Fission Theory, Capture Theory, Binary Accretion Theory

Where does the light come from that makes the moon so bright?

The moon reflects the light from the sun

What is a revolution?

The movement of the Earth around the sun

shortest and longest days of the year, sun reaches its highest point north or south of the equator

An attractive force between any two objects with mass

The spinning of the Earth on its axis

Why does earth have a magnetic field?

Earth’s rotation and the movement of matter in the core

Why are all time zones not the same size?

Some have been modified to fit around cities and countries

Why is the earth a sphere?

During formation planet assumed most stable shape

number of daylight hours equal the number of dark hours

An area that is 15º wide in which time is the same

when the moon is directly between the earth and the sun, when the moon is not visible in the night sky

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Integrated Science II: The Earth-Moon-Sun System

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Questions 29

Answers

1
What is the international date line?
Line drawn through the Pacific ocean
A location where one day is added
An imaginary line on the globe
All of the above
2
How do scientists know that the moon once had a molten core?
none of the above
There is evidence of ancient volcanoes of the moon
There is no proof that the moon was ever molten
Maria on the moon could have only formed from molten rock
3
Where does the symbol for degrees come from?
The Roman symbol for time
The Egyptian symbol for heat
The Babylonian symbol for the sun
The Persian symbol for the moon
4
What is an eclipse?
A semi-circular curve
When the hours of daylight and dark are equal
The shape of Earth’s orbit around the sun
When Earth or the moon blocks light from reaching the other
5
When is the Sun closest to the Earth?
Fall
Spring
Summer
Winter
6
What causes wandering poles?
Movement in Earth’s crust and mantel
Movement in Earth’s core
Polar reversals
Aurora borealis
7
What causes tides?
Gravitational pull of the moon and sun on the Earth
The internal rotation of Earth’s core
A natural shift in tectonic plates
The Earth’s magnetic field
8
How long is one rotation of Earth?
1 hour
14 months
365 days
24 hours
9
What does earth’s magnetic field protect us from?
Radiation from the sun
Radiation from the moon
Aliens
Meteors
10
Before the Apollo missions, there were theories about where our moon came from. What are they?
Binary Accretion Theory, Giant Impact Theory, Fission Theory
Capture Theory, Binary Accretion Theory, Giant Impact Theory
Fission Theory, Capture Theory, Binary Accretion Theory
Capture Theory, Giant Impact Theory, Fission Theory
11
Where does the light come from that makes the moon so bright?
The moon gives off its own light
The moon reflects the light from the sun
The moon only appears bright because the sky is so dark
The moon reflects the light from Earth
12
Collision of charged particles by solar radiation colliding with atoms in the atmosphere is...
An aurora
gravity
moon phases
Solar radiation
13
What is a revolution?
The spinning of the Earth on its axis
The movement of the sun around the Earth
The movement of the Earth around the sun
The spinning of the moon on its axis
14
What is a solstice?
shortest and longest days of the year
number of daylight hours equal the number of dark hours
sun reaches its highest point north or south of the equator
15
A Mars-sized object collided with Earth causing the moon to form. What is this called?
Capture Theory
Giant Impact Theory
Fission Theory
Binary Accretion Theory
16
How many degrees does the earth rotate in one hour?
15
360
60
90
17
What is gravity?
An attractive force between any two objects with mass
A repulsive force between objects
A downward force that only planets have
None of the above
18
Which theory says the moon drifted through space before Earth’s gravity pulled it into orbit?
Capture Theory
Fission Theory
Binary Accretion Theory
Giant Impact Theory
19
How did early astronomers know the earth was round?
All of the above
During an eclipse the Earth has a curved shadow
People in different hemispheres see different stars at night
All dropped objects fall straight down
20
What shape is the earth’s orbit around the sun?
Round
Oval
Elliptic
Triangular
21
What is rotation?
The movement of the Earth around the sun
The movement of the Moon around the Earth
The spinning of the Earth on its axis
None of the above
22
How long is one revolution of the earth?
365 days
26 weeks
24 hours
1 hour
23
Why does earth have a magnetic field?
Earth’s rotation and the movement of matter in the core
Earth’s gravity causes the magnetic field
The pull of the moon’s gravity on Earth causes it
The sun generates the magnetic field
24
Why are all time zones not the same size?
Some have been moved to speed up the morning hours
Some have been modified to fit around cities and countries
It is hard to draw straight lines on a globe
Not all countries like time zones
25
Why is the earth a sphere?
The earth is not actually a sphere.
During formation planet assumed most stable shape
Earth’s dense atmosphere compresses it into a sphere
The spinning of the earth’s core keeps it round
26
What is an equinox?
number of daylight hours equal the number of dark hours
A day in the winter with the fewest hours of daylight
when the Earth’s shadow falls on the moon
sun reaches its highest point north or south of the equator
27
What is a time zone?
A 30º wide area in which the time is same
The place where one day becomes the next
An area that is 15º wide in which time is the same
A location where there is no daylight savings time
28
On the day leading up to a full moon, the moon appears to get larger. What is this called?
Waxing
Eclipsing
Growing
Waning
29
What is a new moon?
When there is half of the moon in the sky
when the moon is directly between the earth and the sun
when the moon is not visible in the night sky
phase of the moon when the entire moon is visible

Integrated Science II: The Earth-Moon-Sun System Flashcards | StudBud