Big Bang/Stars

Front

What does the Big Bang Theory explain?

Back

The Big Bang Theory explains how our universe began.

Front

Which statement is NOT true about the Big Bang Theory?

Back

It is the scientific explanation of how life began on Earth and evolved over time.

Front

What were the original two elements in our universe?

Back

Hydrogen and Helium.

Front

What color are the hottest stars?

Back

Blue.

Front

What atoms made up most of the matter in the universe before stars formed?

Back

Hydrogen and Helium.

Front

What is the significance of the Big Bang Theory in astronomy?

Back

It provides a scientific explanation for the origin of the universe.

Front

What does it mean that the universe is still expanding?

Back

It means that galaxies are moving away from each other over time.

Front

What is cosmic background radiation?

Back

It is the afterglow radiation from the Big Bang, filling the universe.

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.

Front

What process powers stars?

Back

Nuclear fusion, where hydrogen atoms combine to form helium.