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WorksheetsThe structure of the solar system pre test
Total questions: 25
Worksheet time: 13mins
Match the definition with the correct word. Small, rocky object that orbits the Sun in the asteroid belt between Mars and Jupiter.
star
comet
asteroid
planet
Match the definition with the correct word. Average distance from Earth to the Sun—about 150 million km.
period of revolution
period of rotation
comet
astronomical unit
Match the definition with the correct word. Object made of gas, dust, and ice that moves around the Sun in an oval-shaped orbit.
planet
comet
asteroid
orbit
Match the definition with the correct word. Path an object follows as it moves around another object
period of revolution
orbit
period of rotation
star
Match the definition with the correct word. Time it takes an object to travel once around the Sun.
orbit
period of revolution
period of rotation
astronomical unit
Match the definition with the correct word. Time it takes an object to complete one rotation.
period of rotation
period of revolution
orbit
astronomical unit
Match the definition with the correct word. Object in space made of gases in which nuclear fusion reactions occur that emit energy.
planet
asteroid
star
comet
What is the closest planet to the sun?
Earth
Mars
Venus
Mercury
What is the second closest planet to the sun?
Earth
Venus
Mercury
Mars
What is the third closest planet to the sun?
Earth
Mars
Venus
Mercury
What is the 4th closest planet to the sun?
Earth
Mercury
Venus
Mars
What is the 5th closest planet to the sun?
Jupiter
Uranus
Neptune
Saturn
What is the 6th closest planet to the sun?
Jupiter
Saturn
Uranus
Neptune
What is the second farthest planet from the sun?
Uranus
Neptune
Saturn
Jupiter
What is the farthest planet from the sun?
Neptune
Uranus
Jupiter
Saturn
Why is Pluto not a planet?
Pluto actually is a planet.
Pluto does not have the necessary mass.
Pluto turned out to be a moon of Neptune.
Pluto is made of rock and ice and does not have a solid core.
Choose the answer that best completes the sentences.
Planets revolve around the Sun...
in ellipses
in perfect circles
Choose the answer that best completes the sentences.
An ellipse is like a ...
a figure 8
a stretched out circle
Choose the answer that best completes the sentences.
A planet moves slower...
when it is farther from the Sun.
What it is closer to the sun.
Which one of these is not a inner planet?
Mars
Venus
Mercury
Neptune
Which one of these is not an outer planet?
Mars
Jupiter
Neptune
Saturn
Which group of planets are made of ice and gases?
Inner planets
Outer planets
Which group of planets are made of solid rocky material?
Inner planets
Outer planets
An object that orbits the Sun, has a spherical shape, and has a mass greater than the mass of other objects near it is a(n)_______.
Planet
star
asteroid
What keeps planets in orbit around the Sun?
The Sun's mass
The Sun's period of rotation
The Sun's gravitational force
