Earth Materials

Human Dependence on Natural Resources
Plate Tectonics
Seafloor Spreading
100

Rock formed deep underground where heat and pressure cause existing rocks to be changed


Metamorphic rock

100

A resource that can be replaced in a human lifetime

RENEWABLE RESOURCE

100

Evidence of life millions of years ago

What are Fossils?

100

Provides evidence that the continents on tectonic plates have moved away from each other in the past

What are fossils of the same plants and animals found on widely separated continents?

200

The process in which rocks undergo transformations

Rock cycle

200

Clean water to drink and the foods we eat are _____ that are vital to human life.

RENEWABLE RESOURCES

200

Describes the movements of tectonic plates over long periods of time

What is Continental Drift?

200

Part of the recycling of seafloor material includes its destruction. This happens where?

Where is at trenches where rock material is subducted. 

300

Rock formed by the deposition of sediments cemented together over geological time

Sedimentary rock

300

Many natural resources are 

EVENLY OR UNEVENLY distributed around the world. 

UNEVENLY

300

The rigid outer part of the earth, consisting of the crust and upper mantle

What is Lithosphere?

300

The deepest parts of the ocean; long, narrow ditches

What are Trenches?

400

The ability of a system to do work

Energy

400


Describe the possible impacts in the future of using a renewable resource.



The resource could be renewed in the future. 

400

Circular movements through the mantle

What is Convection Current?

400

A boundary formed when two plates move away from each other

What is Divergent Boundary?

500

Rock formed when lava or magma cools and solidifies


Igneous rock

500

Determined from the sum of potential and kinetic energy in a substance

total internal Energy

500

The theory that the outer layer of Earth is divided and moves across Earth’s surface

What is Plate Tectonics?

500

When two tectonic plates pull apart, a ____is formed on the ocean floor

What is Mid-Ocean Ridge?

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