U6
U6(2.0)
U7
U7(2.0)
100

Energy that is not replaced quickly enough in our lifetime

Nonrenewable energy

100

Solid rock made mostly of carbon

Coal

100

The warmest and largest layer of the atmosphere

Thermosphere

100

Air wants to move from high pressure to low pressure 

Global air circulation

200

Remains of ancient organisms that lived over millions of years into fuel 

Fossil fuels

200

Energy found within the nucleus of an atom

Nuclear energy

200

Meteors are located in this layer of the atmosphere

Mesosphere

200
Ocean currents bring warm or cool water to coasts

Oceanic Circulation

300

Energy that can be replaced within our lifetime

Renewable energy

300

What is the name of the car that has both an electric motor and a gasoline motor

Hybrid vehicle

300

Contains the ozone layer that protects our skin

Stratosphere

300

As you go higher in elevation, the temperature decreases

Topography

400

The gaseous state of oil 

Natural gas

400

What is the name of the car that is only electric 

Battery electric vehicle

400
The layer of the atmosphere where weather occurs 

Troposphere

400

During a solar maximum the Earth is warmer 

Solar Activity

500

Thick, sticky black liquid

Oil

500

What is the most energy efficient lightbulb

LED

500

As you go closer to the equator, the temperature increases

Latitude

500

The ash and dust from eruptions blocks the sunlight, making it colder

Volcanic eruptions

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