Unit 8 Review

The universe is:

• A vast expanse of space and matter

• A small part of the solar system

• A fictional concept

• A type of galaxy

The singularity in the context of the universe is:

• a point of infinite density and gravity where the laws of physics break down

• a large star that has exploded

• a region in space with no matter

• a hypothetical planet with advanced technology

Tags

NGSS.MS-PS2-4

The big bang is the theory of the expansion of the universe in which all matter and energy was released into the universe.

• True

• False

Tags

NGSS.HS-ESS1-2

The universe is still expanding today and believed to be around __ billion light-years across. (Fill in the blank)

Tags

NGSS.HS-ESS1-2

The universe is approximately how many billion years old?

• 10 billion years

• 13.8 billion years

• 20 billion years

• 5 billion years

Tags

NGSS.HS-ESS1-2

Hydrogen and Helium were the first two elements created by the big bang.

• True

• False

Tags

NGSS.HS-ESS1-2

What are the major components that make up the universe?

• Planets, Solar Systems and Galaxies

• Stars, planets, and galaxies

• Atoms, molecules, and particles

• Space, time, and gravity

The diagram shows the timeline of the Big Bang Theory. What does it illustrate about the formation of elements?

• It shows the sequence of events leading to the formation of elements.

• It illustrates the chemical reactions involved in element formation.

• It depicts the role of gravity in the formation of elements.

• It explains the timeline of human discovery of elements.

Tags

NGSS.HS-ESS1-2

What does the bread (dough) represent?

• A symbol of prosperity

• A type of food

• A baking ingredient

• A metaphor for growth

What happened to the raisins in the bread and why?

• The raisins were removed because they were too sweet.

• The raisins sank to the bottom because the batter was too thin.

• The raisins burned because the oven was too hot.

• The raisins were evenly distributed because the dough was well-mixed.

Tags

NGSS.MS-PS1-2