Chapter 27: Solar System formation

Question 1

The early oceans became salty when

Accepted Answer

dissolved solids were carried from land into the oceans.

Question 2

Who proposed a heliocentric model of the solar system?

Accepted Answer

Copernicus

Question 3

Which of the following is NOT true of all the inner planets?

Accepted Answer

They are called the gas giants

Question 4

The factor that contributes to Mercury’s daily temperature fluctuation is?

Accepted Answer

It has no atmosphere

Question 5

When volcanic eruptions released large amounts of gases to form our atmosphere it was called?

Accepted Answer

outgassing

Question 6

Name of the hypothesis that states that the solar system was formed in cloud of gas and dust

Accepted Answer

Nebula Hypothesis

Question 7

Who believed that planets orbited around the Earth?

Accepted Answer

Aristole

Question 8

A small body from which a planet originated in the solar system early development is called

Accepted Answer

planetesimal

Question 9

The Sun contains what percent of the original solar nebula?

Accepted Answer

99%

Question 10

When a larger body is formed when planetesimals joined together is called

Accepted Answer

protoplanet

Question 11

Young Earth formed a core, mantle, and crust in a process called

Accepted Answer

differentiation

Question 12

Which of the following separates the inner planets from the outer planets?

Accepted Answer

Asteroid Belt

Question 13

Name the least dense planet in the solar system.

Accepted Answer

Saturn

Question 14

Which of the following celestial bodies do scientists NOT consider a major planet?

Accepted Answer

Pluto

Questions 14