Big Claims from Labs

Question 1

What are the main components of the Sun?

Answer 1

mostly hydrogen & helium

The Sun is primarily composed of these two light elements.

Question 2

What is happening to the Universe?

Answer 2

The Universe is expanding

This expansion was first observed by Edwin Hubble.

Question 3

What elements are galaxies primarily made of?

Answer 3

H & He

Hydrogen and helium are the most abundant elements in galaxies.

Question 4

What determines a star’s fate?

Answer 4

Star mass

The mass of a star influences its lifecycle and ultimate end.

Question 5

True or False: Bigger stars produce heavier elements and have a longer life.

Answer 5

False

Bigger stars fuse elements faster and have shorter lifespans.

Question 6

Fill in the blank: Bigger stars lead to _______ elements and _______ fusion.

Answer 6

heavier; faster

Heavier elements are produced through more rapid fusion processes.

Question 7

What is the relationship between star mass and its life span?

Answer 7

Bigger stars have shorter life spans

The more massive a star, the quicker it consumes its fuel.