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Solar System
Solar System
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6th Grade Science
Flashcards
50 cards
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Practice quiz
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Questions
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Answers
1
About how long is a lunar cycle?
28 days
1 week
52 weeks
1 day
2
Which object has a gravitational force so strong that it forms the center of the solar system?
the Moon
Pluto
Earth
the Sun
3
Which of these includes Earth?
the Eagle Nebula
the asteroid belt
the Andromeda Galaxy
the solar system
4
If the Sun were larger, what would most likely have to be true for Earth to sustain life?
Earth would have to be further from the Sun.
Earth would have to be smaller.
Earth would have to be loser to the Sun.
Earth would have to be larger.
5
Which moon phase occurs approximately 14 days after a full moon?
new moon
first quarter
waning crescent
waxing gibbous
6
Which term best describes what happens when lenses bend and concentrate light?
refracting
diffracting
polarizing
reflecting
7
There are MORE hours of sunlight in the Northern Hemisphere during which season?
spring
winter
fall
summer
8
Where do these astronauts most likely stay while in space for extended amounts of time?
in a lunar module
in a space shuttle
on a space station
on a space probe
9
Which of the following diagrams shows summer in the Northern Hemisphere?
C
A
B
D
10
Which of these provide the best evidence that life could develop on Mars?
its surface temperatures
its craters and rocky surface
its atmospheric gases
its ice and organic molecules
11
In December, one side of Earth will receive less energy from the Sun than the other side. Why?
Sunlight traveling to Earth is blocked by Moon
Earth rotates on its axis
Sunlight traveling to Earth reflects off the moon.
Earth is tilted on its axis.
12
What was the goal of NASA's Apollo program?
to search for life on planets other than Earth
to determine the composition of the Sun
to land on a planet in another solar system
to send a human to land on the Moon
13
Which statement accurately describes the relationship between Earth and our solar system?
Earth is the only planet that has a moon.
Earth is one of many planets orbiting the Sun.
Earth is the planet orbiting closest to the Sun.
Earth is one of many planets orbiting the Milky Way.
14
In order for muscles and bones to remain healthy during space flights, what needs planning?
monitoring circadian rhythms
counseling activities for tension
exercising to maintain strength
practicing space walking
15
On the same day, Jacksonville, Fl can have more daylight hours than New York City. Why?
because the Moon reflects sunlight onto the Earth
because Earth tilts on its axis
because gravity pulls Earth toward the Sun
because Earth rotates
16
Which of these is influenced the most by the gravitational force of the Sun?
axial tilt
the masses of the planets
orbital path
the number of moons per planet
17
How does gravity support life on Earth?
by forcing Earth to continuously spin on its axis
keeping water and gas in the atmosphere close to Earth's
by causing changes in the distance between Earth and the sun
preventing meteors and comets from hitting Earth's surface
18
Which of these is the best reason for exercising on space flights?
to minimize the loss of muscle mass due to micrgravity
to increase strength for moving around in the cabin
to keep from becoming overweight on a space mission
to ensure that bodily fluids do not collect in the feet.
19
Which describes a property of water that allows some liquid water to remain in frozen lakes?
Water is less dense as a solid than as a liquid.
Water hold less air at higher temperatures.
Water has a Mohs hardness of about 2 when it is frozen.
Water can dissolve many different substances.
20
Which of the following is visible through a reflecting telescope?
black holes in deep space
planets around other stars
moons around Jupiter
surface of Saturn
21
How is Earth different from other planets in the solar system?
Earth has no natural satellites.
Earth's atmosphere is composed of gases.
Volcanoes release liquid rock onto Earth's surface.
Water is found in all three phases on Earth.
22
Look at the image
winter
fall
summer
spring
23
Of the known planets in our solar system, which characteristic is unique to the planet Earth?
revolves around the Sun
orbited by a moon
Covered mostly by water
has a gravitational field
24
At the time, manned space missions like these led to which advancements?
the exploration of the mountains on Mars
the discovery of extraterrestrial life forms
a detailed model of the structure of the Sun
a close observation of the surface of the Moon
25
What is the best location for telescopes that can show images of very distant celestial bodies?
on mountain tops
at higher latitudes
at sea level
in outer space
26
Which statement best describes Copernicus' theory of heliocentric structure of the solar system
Moons have circular orbits in the solar system.
Earth is at the center of the solar system.
The Sun is at the center of the solar system.
There are eight planets in the solar system.
27
Which is a reason life in the outer planets is less likely than life on planets nearer the Sun?
They have too little mass.
Their surfaces are extremely hot.
They have too much mass.
Their surfaces are extremely cold.
28
About how long does one of Earth's revolutions around the Sun take?
1 month
1 year
1 day
1 week
29
During which phase of the Moon could a solar eclipse take place?
full
quarter
new
crescent
30
What do you use on a telescope in order to photograph solar flares and solar prominences?
a light filter
a chronograph
an electric drive
a series of mirrors
31
Which property of water is most important for organisms to have water readily available?
its high surface tension
its ability to exist as a liquid
its ability to freeze
its specific heat capacity
32
Which conditions is most responsible for Earth having an environment that supports life?
erupting volcanoes moderating atmospheric temperatures
water that exists in all three physical states of matter
oceans regulating climate on land
the percentage of nitrogen in the atmosphere
33
Life is more likely to be found on a planet whose atmosphere contains abundant
sulfur dioxide.
neon.
oxygen.
hydrogen.
34
Which scientist is credited with discovering the first four moons of Jupiter?
Charles Darwin
Galileo Galilei
Albert Einstein
Sir Isaac Newton
35
After four seasons have passed on Earth, which has happened?
Earth has completed one rotation around the Moon.
The Sun has completed one revolution around the Earth.
The Moon has completed one revolution around Earth.
Earth has completed one revolution around the sun.
36
What is significant about the discovery of water on Mars?
It proves there is life on Mars.
It proves there was an advanced civilization on Mars.
It provides evidence of an advanced civilization on Mars.
It provides evidence there may be life on Mars.
37
Which fact best explains why there is life on Earth but not on the Moon?
The Moon is much smaller than Earth.
The Moon has little water and oxygen.
The Moon has no gravity.
The Moon does not go around the Sun.
38
Which of the following helps keep the Moon in its orbit?
latitude
gravity
friction
longitude
39
To which planet do NASA scientists hope to send humans next?
Mars
Jupiter
Venus
Mercury
40
Which pair would be most necessary for life to develop on another planet?
helium and hydrogen
liquid water and carbon
sulfur and nitrogen
chlorophyll
41
Which properties are most important to sustaining life on Earth?
3 and 4
2 and 3
4 and 5
1 and 2
42
Which of the following is most necessary for life to develop on another planet?
warm soil
liquid water
atmospheric oxygen
rocky surfaces
43
The tilt of Earth affects living organisms. What is directly affected by Earth's tilt?
phases of the Moon
cloud formation
night and day
changing of the seasons
44
Telescopes were invented hundreds of years ago. Which was discovered as a result of this?
the bacteria that causes disease
the parts of a plant that perform photosynthesis
the deep-sea trenches in the ocean
the moons of Jupiter
45
What evidence is there that the gravitational pull of the Moon has a direct effect on Earth?
changes in tidal ranges
climate variations
number of earthquakes
change of seasons
46
Which of these is most responsible for Earth's surface temperatures?
the greenhouse effect in the atmosphere
plankton distribution in shallow waters
solar radiation reflected from the Moon
many volcanic eruptions near the Ring of Fire
47
The temperature at which water freezes enables water to exist in which two forms on Earth?
liquid oceans and solid glaciers
freshwater rivers and saltwater oceans
atmospheric vapor and cloud droplets
water in soil an water in plants
48
Based on the diagram, what season would it be in Florida?
spring
winter
fall
summer
49
See Image
tilt of Earth on its axis
revolution of the Moon around Earth
revolution of Earth around the Sun
rotation of Earth on its axis
50
How many of these resources are necessary for life to exist on the moon or another planet?
3
4
2
1
