The Sun produces energy by fusing hydrogen atoms into helium atoms in the _____.

• Radiative Zone

• Convective Zone

• Core

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

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

Tags

NGSS.MS-ESS1-3

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

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

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