Solar Test

Front

Approximately how old is the sun?

Back

About 4.5 Billion years

Front

What is the sun mostly made up of?

Back

Hydrogen

Front

What is the visible surface of the sun called?

Back

photosphere

Front

Which solar layer extends millions of miles out into space?

Back

Corona

Front

What is a solar wind?

Back

Constant flow of tiny, fast, electrically charged particles

Front

What is the name for the phenomenon of a giant loop of energy leaping from the surface of the Sun?

Back

a solar prominence

Front

What are the dark marks on the sun's surface that are cooler than the rest of the sun called?

Back

Sun Spots

Front

Which portion of the sun is the hottest?

Back

Core

Front

Which elements are most common in the SUN?

Back

hydrogen and helium

Front

What protects the Earth from solar winds?

Back

The magnetic field