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WorksheetsTrms Universe and Solar System
Total questions: 25
Worksheet time: 13mins
Earth makes one full rotation on its axis approximately every 24 hours. Suppose Earth’s period of rotation increased to 28 hours. Which of the following changes would occur?
There would be fewer days in a week.
The length of daylight and nighttime would increase.
Earth`s distance from the sun would decrease.
It would take Earth longer to revolve around the sun.
Current scientific evidence indicates that there is no liquid water on Mars, but there is frozen water. This is due to the fact that temperatures on Mars, even during the summer, are well below 0°C (32°F). Which of the following changes would most likely allow for an increase in temperature and the presence of liquid water on Mars?
a decrease in the tilt of Mars` axis
an increase in Mars’ period and rotation
an increase in Mars` period of revolution
a decrease in Mars` distance from the sun
Astronomers believe that there are about 100,000 comets that travel through our solar system. Comets are chunks of ice, dust, and gas that orbit around our sun. Which of the following can be observed from Earth as comets get closer to the sun?
They explode
Their gasses burn.
Their tails get longer.
They begin to slow down
The Milky Way Galaxy would best be classified as…
Barred Galaxies
Spiral Galaxies
Elliptical Galaxies
Irregular Galaxies
Which of these characteristics of the earth best explains the change of seasons?
The diameter of the earth
The tilt of Earth’s axis
The speed of the earth’s rotation
The distance from the earth to the sun.
Astronauts weigh more on Earth than they do on the moon because…
they have less mass on the moon.
their density decreases on the moon.
the moon has less gravity than Earth.
the moon has less friction than Earth.
Which of the following lists Earth, Jupiter, the Moon, and the Sun in order from largest to smallest?
Jupiter, Earth, Sun, Moon
Sun, Jupiter, Earth, Moon
Sun, Jupiter, Moon, Earth
Jupiter, Sun, Earth, Moon
Venus has the highest surface temperature of all the planets in our solar system. Which is the best explanation for this?
Venus rotates on its axis very slowly.
Venus is very close to the Sun.
Venus revolves around the Sun relatively quickly.
Venus's atmosphere has thick clouds and carbon dioxide.
The asteroid belt is located between
the Sun and Earth.
Mars and Jupiter.
Neptune and Pluto.
Saturn and Uranus.
Which planet is closest to the Sun?
Jupiter
Mars
Venus
Mercury
Which planet do scientists think once had surface water or flowing rivers?
Mercury
Venus
Mars
Jupiter
Venus is completely enveloped in clouds that hide its surface from view on Earth. Which statement is also true about these clouds?
They keep the surface cool
They produce sulfuric acid rain.
They are mostly made of water.
They are caused by volcanoes.
A comet is largely made up of
iron and nickel.
rock.
petroleum.
water and ice.
We can be sure that the Milky Way galaxy we live in is a spiral galaxy rather than an elliptical galaxy because
it has curved arms.
it does not show any rotation
its stars are all about the same age
new stars are no longer forming
. A hurricane-type cloud known as the Great Red Spot can be found on which planet?
Saturn
Mars
Uranus
Jupiter
Which planet is characterized by polar ice caps, a pink sky, a rust-colored surface, large volcanoes, and surface channels
Uranus
Pluto
Mars
Saturn
Which planet is closer to the Sun than Earth is to the Sun?
Jupiter
Venus
Saturn
Mars
Which is made primarily of pieces of rock or iron that enter Earth's atmosphere?
asteroids
comets
solar flares
meteorites
Which planet has gases, land masses, and large amounts of surface water?
Earth
Mars
Pluto
Saturn
A planet has twice the mass of Earth and the same radius as Earth. If you were standing on this planet, the force of gravity would be…
twice that on Earth.
half that on Earth.
the same as on Earth.
four times greater than Earth's.
Terry was learning about an object in the Solar System that is made of frozen gases and solid rock. Which of these objects was she learning about?
a star
a comet
a meteor
an asteroid
How is Saturn different from Earth?
Saturn is smaller than Earth.
Saturn is closer to the Sun than Earth.
Earth has a moon, while Saturn does not have any moons.
Earth is made mostly of rock, while Saturn is made mostly of gas.
Which of these planets has a mass closest to the Earth's mass?
Mercury
Venus
Mars
Jupiter
What is the name of a model of the solar system in which Earth and the other planets revolve around the sun?
Solcentric
Heliocentric
Macrocentric
Geocentric
What is the name of a model of the universe in which Earth is at the center of the revolving planets and stars?
Solcentric
Heliocentric
Macrocentric
Geocentric
