Our Solar System/Sun Review

Front

From the center out, the correct order of the parts of the Sun is

Back

core, radiative zone, convection zone, photosphere, chromosphere, corona.

Front

What holds the Sun together?

Back

its gravitational force

Front

What is the Sun's outermost atmosphere called?

Back

the corona

Front

The Sun produces its energy through __________.

Back

the fusion of hydrogen into helium

Front

The Sun is about how far from Earth?

Back

150,000,000 km

Front

Which is denser? Earth (a solid object) or the Sun, which is about 300,000 times more massive than Earth?

Back

Earth (a solid object)

Front

Light travels for about ________ to reach the Sun's surface from the Sun's core, and about ________ to reach Earth from the Sun's surface.

Back

16 million years; 8 minutes

Front

What is the hottest part of the Sun?

Back

the core.

Front

How is the composition of the Sun today different than when it formed 4.6 billion years ago?

Back

There is now more helium and less hydrogen.

Front

What is the visible surface of the Sun called?

Back

the photosphere