8.8A : Level 3 Vocabulary

Front

What is a celestial structure characterized by having long, spiral arms and a bright center bulge?

Back

Spiral Galaxy

Front

What is a dense ball of gas where nuclear fusion is ongoing?

Back

Star

Tags

NGSS.HS-ESS1-1

Front

What is a celestial structure that is a collection of stars held together by gravity and has an oval shape, but lacks spiral arms?

Back

Elliptical Galaxy

Front

What celestial body undergoes the fusion of Hydrogen into Helium to create radiation?

Back

Star

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Front

What is a massive collection of stars held together by gravity?

Back

Galaxy

Tags

NGSS.MS-ESS1-2

Front

What is the process called where Hydrogen is fused into Helium in stars?

Back

Nuclear Fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

What type of galaxy is characterized by a lack of spiral arms and a more uniform distribution of stars?

Back

Elliptical Galaxy

Front

What is the main difference between a spiral galaxy and an elliptical galaxy?

Back

Spiral galaxies have spiral arms and a bright center, while elliptical galaxies are oval-shaped and lack spiral arms.

Front

What is the term for the gravitational force that holds stars together in a galaxy?

Back

Gravity

Tags

NGSS.HS-PS2-4

Front

What is the primary source of energy for stars?

Back

Nuclear Fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8