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25 questions
An object that orbits the Sun, has a spherical shape, and has mass greater than the mass of other objects near it is a(n)
star
planet
asteroid
comet
What keeps planets in orbit around the Sun?
the Sun's mass
the Sun's period of rotation
the Sun's gravitational force
the Sun's color
The planets in the solar system are so far apart that scientists measure the distances between them in
miles (mi)
kilometers (km)
astronomical units (AU)
inches (in)
All the inner planets
have at least one moon.
have thick atmospheres.
are rocky and have a solid outer layer.
are large.
All the outer planets are made mostly of
water ice.
metal and rock.
gas and liquid around the solid core.
a rocky surface.
Which planet is the solar system's largest?
Jupiter
Saturn
Neptune
Uranus
Which planet has a sideways axis rotation?
Jupiter
Saturn
Uranus
Mercury
Which planet is the hottest?
Mercury
Earth
Jupiter
Venus
The majority of asteroids are found in a belt located between which two planets?
Earth and Mars
Mars and Venus
Mars and Jupiter
Jupiter and Saturn
The force of gravitational attraction between the Sun and Venus could be increased by reducing which of the following?
The distance between the Sun and Venus
the period of rotation of the Sun
The mass of the Sun and Venus
The speed of the orbit of Venus
Which of the following is a complete list of the inner planets?
Venus, Earth, Mars, and Jupiter
Mercury, Venus, Earth, and Mars
Jupiter, Saturn, Uranus, and Neptune
Mercury, Venus, Earth, and Jupiter
A person on Pluto’s surface would experience a(n) _______ gravitational force compared to on Earth.
weaker, because Pluto is further from the Sun.
weaker, because Pluto has less mass than the Earth
equal, because both planets orbit the Sun.
stronger, because Pluto's surface is closer to its core.
As the mass of an object increases, gravity
(a) . As the mass of an object decreases, gravity (b) . As the distance between two objects increases, gravity (c) . As the distance between two objects decreases, gravity (d) .
stays the same
largest planet in the solar system
Neptune
Saturn
Jupiter
Uranus
outermost planet in our solar system
Neptune
Saturn
Jupiter
Uranus
called the "red planet" because of its iron-rich soil
Mercury
Venus
Jupiter
Mars
has rings that are the most obvious in appearance
Saturn
Jupiter
Uranus
Neptune
has an atmosphere that protects life
Mercury
Venus
Earth
Mars
This is the closest planet to the sun
Mercury
Venus
Earth
Mars
The planet is known as Earth's "twin"
Mercury
Venus
Neptune
Mars
This planet is the hottest in the solar system.
Mercury
Venus
Jupiter
Saturn
Organize these options into the right categories.
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Label the following planets.
Jupiter
Saturn
Uranus
Neptune
Mercury
Venus
Earth
Mars
Label the following planets.
Mercury
Venus
Earth
Mars
Jupiter
Neptune
Uranus
Saturn
When the mass of an object increases, gravity (a) . When the mass of an object decreases, gravity (b) . When the distance between two object increases, gravity (c) . When the distance between two objects decreases, gravity (d)
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