Stars from Birth to Death
Low Mass Stars
High Mass Stars
Exploding Stars
Stars and Elements
100

This force pulls gas and dust together to form a star.

What is gravity?

100

In this stage, a star expands and cools after using up its hydrogen fuel.

What is a red giant?

100

This is the end stage of a massive star with gravity so strong, not even light can escape.

What is a black hole?

100

This end-of-life star explosion can produce heavy elements that might become part of a new star system.

What is a supernova?

100

The formation of new elements during the life cycle of a star is called stellar n___.

What is nucleosynthesis?

200

The process where hydrogen atoms combine to form helium, powering a star. 

What is nuclear fusion?

200

The outer layer of a red giant that has used up its helium can form this colorful, glowing shell. 

What is a planetary nebula?

200

This spinning, magnetic star is what remains after a star less than 3 solar masses goes supernova.

What is a neutron star (or pulsar)?

200

This element is the heaviest that can form via core fusion in a star.

What is iron?

200

The heaviest mass elements produced during a supernova explosion are created by ___ capture.

What is neutron?

300

This is the point of infinite mass at the center of a black hole.

What is a singularity?

300

Small stars like our Sun become this glowing dense object after fusion stops. 

What is a white dwarf?

300

This boundary around a black hole is the "point of no return" for any matter or energy in the vicinity.

What is the event horizon?

300

This expanding cloud of debris is left behind after a high-mass stellar explosion.

What is a supernova remnant?

300

Alpha particle fusion to form heavier elements is also described as the capture of this element.

What is helium?

400

The end of life for a star depends primarily on this property. 

What is mass?

400

The dense, glowing core of a white dwarf consists of this element.

What is carbon?

400

This theory describes time dilation and other distortions in spacetime that occur when traveling near the speed of light.

What is Einstein's Theory of Relativity?

400

A Type II supernova is also called a ___-collapse supernova.

What is "core"?

400

The distance from the center of a black hole to the event horizon is known as the S___ Radius. 

What is "Schwarzschild"?

500

Black holes do not emit light because the escape velocity of a black hole is greater than the ___.

What is the speed of light?

500

This type of explosion occurs when hydrogen builds up on the surface of a white dwarf of less than 1.4 solar masses.

What is a nova?

500

This model describes the periodic bursts of light from a pulsar.

What is the Lighthouse Model?

500

A carbon detonation, Type Ia supernova occurs when the mass of a white dwarf exceeds 1.4 solar masses, also known as the __ limit.

What is Chandrasekhar?

500

This low-mass, high-energy particle is produced when protons and electrons are compressed together into neutrons.

What is a neutrino?