17 questions
The Sun produces energy by fusing hydrogen atoms into helium atoms in the _____.
Radiative Zone
Convective Zone
Core
What are the Sun's layers of atmosphere from lowest to highest layer?
Core, Radiative Zone, Convection Zone
Corona, Chromosphere, Photosphere
Convection Zone, Radiative Zone, Core
Photosphere, Chromosphere, Corona
Where the color of the Sun comes from.
Core
Chromosphere
Corona
Photosphere
Which of these common characteristics do only the outer planets share?
solid surface
low mass
low density
gaseous atmosphere
Choose the correct order of these celestial objects, from smallest to largest.
Sun, galaxies, planets, solar system
Planets, Sun, solar system, galaxies
Galaxies, solar system, Sun, planets
Galaxies, planets, solar system, Sun
Which of these planets is mostly gas?
Mercury
Mars
Saturn
Venus
_____ keeps planets away from the sun, while _____ pulls planets toward the sun.
Mass, momentum
Inertia, gravity
Inertia, acceleration
Gravity, inertia
Proxima Centauri is the next closest star to Earth, after the Sun, and lies 4.22 light years away. This
means that when we go out on a clear night and look up at Proxima Centauri, we are seeing light that
left that star ______.
yesterday
4.22 seconds ago
4.22 months ago
4.22 years ago
Copernicus thought the orbits of the planets were circular, but __________ showed them to be elliptical.
Gagarin
Galileo
Kepler
Ptolemy
Later work by ______ resulted in the development of the _________ model of the solar system, marking
the beginning of modern astronomy.
Ptolemy, heliocentric
Newton, Geocentric
Kepler, Geocentric
Copernicus, Heliocentric
All of the known dwarf planets except Ceres orbit in the ___.
asteroid belt
Kuiper Belt
Milky Way
Oort Cloud
If the mass of the Earth suddenly and magically increased by 50%, what would happen to the Moon’s orbit?
It would stay the same
It would become bigger, moving farther from Earth
It would become smaller, moving closer to Earth
Silly Rabbit, you can’t just change the mass of a planet
The ____ of two objects and the distances between them determine the gravitational attraction between the objects.
masses
gravity
density
circumference
The inner planets are ____ and have ____ surfaces.
larger, gaseous
larger, rocky
smaller, gaseous
smaller, rocky
All of the outer planets have many ____, which range in number from 13 to more than 60.
Volcanoes
Rings
Moons
Craters
All of the gas giants’ atmospheres are made up primarily of helium and ____.
Carbon Dioxide
Hydrogen
Oxygen
Nitrogen
When a meteoroid enters Earth’s atmosphere, it produces a streak of light called a(n) _____.
asteroid
comet
meteor
meteorite