Unit 1 Review

Unit 1 Review

Layers of Earth, Plate Tectonics,

Scientific Laws and Theories

Land formations

Plate Tectonics

Mid-Ocean Ridge

-Undersea mountain range

-Tectonic plates on each side slowly separate

-As the magma makes contact with ocean water, it cools forming part of the Earth’s crust as it separates

Youtube video

https://www.youtube.com/watch?v=sgDM6m0lUGY&ab_channel=garfieldcdss

Multiple Choice

What type of plate boundary causes mid ocean ridges?

• convergent

• divergent

• transform

Multiple Choice

Choose which image shows a divergent boundary

Multiple Choice

Divergent boundaries are also responsible for...

• volcanoes

• oceanic trenches

• sea floor spreading

Convergent boundary

• Two plates moving closer together

• When an oceanic and continental plate collides, the denser oceanic plate is forced into the mantle in a process called subduction ​

Multiple Choice

Which is a convergent boundary?

Convergent Boundary

How mountains are made:

https://www.youtube.com/watch?v=d9bKXY0OMxc&ab_channel=BrianJohnson

Hawaii:

https://www.youtube.com/watch?v=LdlEufZop-Y&ab_channel=ScientificAmerican

Multiple Choice

In addition to mountains, _____ are also caused by convergent boundary

• volcanoes

• continental rift

• fault lines

Multiple Choice

What causes the plates on earth to move?

• conduction in the earth's mantle

• radiation from the earth's core

• convection from the earth's mantle

Multiple Choice

What is the subduction zone?

• where two plates converge, and one plate is thrust beneath the other

• when two plates diverge, and one drifts from the other

Multiple Choice

At a subduction zone, the _______ dense plate will sink into the earth's mantle

• less

• more

Multiple Choice

Density Question: Why does the peeled orange sink?

• The peeled orange is more dense

• The peeled orange is less dense

Multiple Choice

At a subduction zone, the _______ dense plate will sink back into the earth's mantle

• less

• more

Convergent Boundary

Mountains, volcanoes, Ocean trenches

Continental Drift

• Continents were at one point one large landmass called "Pangea"

• Evidence includes: same fossils found on different continents, mountains of the same age and composition found on distant continents, glacier evidence, south america and africa fit together as if a puzzle piece

Open Ended

What is continental drift?

Earth's Layers

Earth has 4 layers

• Crust

• Mantle

• Inner Core

• Outer Core

• 
  

• The inner core is SOLID iron

Multiple Choice

Which type of crust is more dense?

• oceanic

• continental

Multiple Choice

What can be said about temperature and pressure as you go deeper in the earth?​

• temperature and pressure are unaffected

• temperature goes up, pressure remains constant

• temperature and pressure both increase

• temperature stays the same, pressure increases

Multiple Choice

Scientists can't study the Earth's layers directly, so they must use...

• artist illustrations

• a drill to drill deep into the earth

• scientific models

Theories and Laws

• Theories EXPLAIN why things happen

• Laws state observations about a phenomena

• Both are supported by tremendous evidence

Multiple Choice

All living things are made of cells. New cells come from pre-existing cells and the cell is the basic unit of life.

• Law

• Theory

Multiple Choice

All living things are made of cells. New cells come from pre-existing cells and the cell is the basic unit of life.

• Law

• Theory