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11 questions
Trojans are _________.
long-period comets
asteroids affected by Jupiter's gravity
asteroids which fall to the Earth
plants with ring systems
A natural satellite ________.
must orbit the sun
is a special type of dwarf planet
orbits around another body
is a man-made object
Most asteroids ______.
are made of frozen gas and ice
generate their own heat through nuclear fusion
revolve around Jupiter
are found between Mars and Jupiter
Jovian planets _______.
usually have no satellites
are made of mostly rock and iron
are found inside the asteroid belt
are made of mostly helium and hydrogen
The sun's photosphere _______.
can only be seen during an eclipse
is the part of the sun we see from Earth
is where nuclear fusion reactions occur
is the outermost layer of the atmosphere
Will the sun ever burn out?
Yes, because it does not have enough gravity to continue nuclear reactions.
No, because it is too massive.
No, because it continually replenishes its fuel.
Yes, because it will eventually run out of hydrogen fuel.
Which of the following statements is true?
Mars' moons may be captured comets.
Comets have circular orbits around the sun.
Chunks of rock which hit Earth's surface are called asteroids.
Most meteors burn up in Earth's atmosphere.
Ceres is a dwarf planet. It must _____. CHOOSE ALL THAT APPLY.
be made of gas
revolve around the sun
have a spherical shape
orbit in a clear area
have a satellite
Earth is unique because it _______.
is located outside the asteroid belt
has the largest satellite in the solar system
is the only known planet to support life
has only one satellite
The sun ____________. CHOOSE ALL THAT APPLY.
is made mostly of hydrogen and helium
will continue to release light and heat forever
has a solid core made of iron and nickel
is the only star in our solar system
is the largest star in the Milky Way galaxy
What does the sun do to generate energy?
fuse hydrogen atoms into carbon
split helium atoms into hydrogen
fuse hydrogen atoms into helium
split iron atoms into nickel
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