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Compared to other stars we observe, the Sun looks bigger and brighter because:
it's much closer to Earth
The photosphere is the Sun's:
The temperature of the Sun's core is ___________ of degrees Celsius.
Which two elements make up the Sun?
hydrogen and helium
hydrogen and oxygen
carbon and nitrogen
oxygen and carbon
In a nuclear fusion reaction, atoms...
Nighttime is a result of:
Earth's surface temperature
If Earth was farther away from the Sun, our water would be mostly:
none of these
Which of these statements about the sun is true?
The Sun is a red giant.
The Sun will become a red giant.
The Sun started as a red giant.
The Sun will never be a red giant.
Prominences and sunspots are both...
jets of burning gas
patches on the sun's surface
caused by the sun's electromagnetic field
able to be seen during an eclipse
The corona is to the Sun as the ___ is/are to the Earth.