Geo Universe Exam

Carbon-12 has 6 neutrons. Carbon-14 has 8 neutrons. This makes Carbon-14 a(n) ____.

Which of the following is NOT a form of electromagnetic radiation?

The beginning expansion of the Big Bang happened relatively slowly compared to how it is expanding now.

The source of the sun's energy is ____.

The mass number of an atom is obtained by totaling the number of ___.

H-R diagrams are useful because they show a unique pattern and can be used to classify stars.

The Big Bang is responsible for the formation of two elements found in our universe, hydrogen and helium.

Which of the following supports the big bang theory?

A star is said to be born when _____.

The main factor that affects the evolution of a star is its ____.

The remnant of a supernova is a ____.

Massive stars terminate in a brilliant explosion called a ____.

Stars of which color have the highest surface temperature?

Which of the following indicates that the universe is expanding?

By method of _____, we can know how much of each element is in a star because of the creation of absorption lines.

Which of the following is NOT a main part of the star life cycle?

What is the next stage in the sun's life cycle?

When a main-sequence star has exhausted the fuel in its core, it becomes a ____.

A Hertzsprung-Russell (H-R) diagram shows the relationship between ____.

The sun is a ____.

Stars of what color have the coolest surface temperature?

Which force is most responsible for the formation of a star?

The sun can continue to exist in its present stable state for another _______.

According to the Big Bang theory, the universe began about ____.

Another name for the interstellar matter that will eventually form a star is ________.

As a star goes though this cycle their ___ changes.

The smallest particle of an element that still retains all the element's properties is a(n) ___?

The farther away a galaxy is from us, the ____ it is moving away from us.

According to the _____ theory, the universe formed in an instant, billions of years ago, in an enormous explosion.

The central region of an atom is called the _______.

All stars, regardless of size, eventually ______.

What would be the name for a star embryo?

Which of these stars is the oldest?

According to the diagram, the sun has an absolute magnitude of

In the cores of extremely hot red giants, nuclear reactions convert helium to ____.

What is the atomic number of an element?

If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?