Unit 1
Unit 2
Unit 3
Unit 4
Unit 4 Continued
100

A statement that helps to explain a concept or phenomenon based on conditions and evidence

What is a theory?

100

The explanation of how the solar system formed from a cloud of dust and gas



What is The Nebular Hypothesis?

100

This is the movement of one celestial object around another.

What is revolution (revolving)?

100

The least dense layer of earth broken up into 12 large plates

What is the crust/lithosphere?

100

True or false: Geologic changes take place both catastrophically and gradually?

What is True?

200

This piece of evidence proves that the universe is still expanding based on the Doppler effect.

What is a redshift?

200

This % amount of mass remains at the center of our solar systems with the Sun.

What is 99%?

200

There are this many kepler's laws

What is 3?
200

Convection currents occur in this layer causing the movement of tectonic plates

What is the mantle/asthenosphere?

200

The Geologic time scale is broken down into __ main divisions.



What is 4?

300

This theory helps explains the origin of our universe as a singular expansion that is continuing today.

What is the Big Bang Theory?

300

Due to this force, larger planets tend to have more moons.

What is gravity?

300

Kepler's 3rd law states that the farther the planet is away from the sun, the ___________ its period of revolution is.

What is longer?

300

This layer is responsible for creating the earth's magnetic field by rotating in a counterclockwise motion

What is the outer core?

300

This type of plate boundary has two plates colliding to form subduction zones and mountains.

What is convergent boundaries?

400

This is radiation and energy distributed all over space in all directions that is left over from the big bang.

What is Cosmic Microwave Background Radiation?

400

A cloud of dust and gas responsible for forming our solar system

what is a nebula?

400

When the Southern hemisphere is receiving direct sunlight and the Northern Hemisphere is not, it is this season in the Southern Hemisphere

What is Summer?

400

We know this layer is a solid because the p-waves speed up once they arrive here

What is the inner core?

400

This plate boundary is responsible for creating new crust at mid-ocean ridges because of seafloor spreading.

What is a divergent boundary?

500

These two elements are the most abundant in the universe

What is hydrogen & helium?

500

This determines the life cycle stages of a star.

What is beginning mass?

500

When the Earth, a NEW Moon, and Sun are lined up in a straight line creating a shadow on the Earth. 


What is solar eclipse?
500

This layer is a liquid and we know that because the the s-waves not traveling through it

What is the outer core?

500


If rock layer B is younger than C, older than A, but C is younger than D. then what is the oldest rock layer? (assuming no disturbances)



What is rock layer D?

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