Geoscience Unit 2 Exam Review

Which of these is not part of the study of geoscience?

• What future societies might live on Earth or other planets

• How the Earth and its surroundings were made

• What the Earth and its surroundings are made of

• Processes that continue to shape the Earth and its surroundings

What did Edwin Hubble's discoveries lead to?

• The idea that the universe is expanding

• The discovery of aliens

• Cosmic background radiation

• Dark matter

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

Light emitted from a star or galaxy can be separated into a band of colors, called a ________.

• Red Shift

• Wave Length

• Spectrum

• Microwave

Cosmic microwave background radiation is:

• the remaining energy from the big bang.

• incredibly hot.

• visible to the human eye.

• only located in certain places in the universe.

Light waves that are stretched out by objects moving apart:

• have a shorter wavelength.
• travel faster than the speed of light.
• are invisible.
• appear more red.

The greater the redshift:

• the faster the galaxy is moving.
• the shorter the light waves.
• the bigger the galaxy.
• the closer the galaxy.

What color of star is the hottest?

• Blue

• Red

• Yellow

• Orange

What is the name of the explosion at the death of a massive star?

• Supergiant

• Supernova

• Black Hole

• Nebula

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion

• gravity

• hydrogen

• friction