Renewable and Non-Renewable Energy What is the Law of Conservation of

Energy? A piece of wood is lit on fire. What type

of energy does it start with, and what type of energy does it become?

Steam makes a turbine spin. What type of energy does it start with, and what type of energy does it become?

Agenda

Unit 3 MasteryCatalyst ReviewTwo types of resourcesOil!ActivExpression PracticeExit Question

Objectives

By the end of today, all SWBAT…Describe the difference between renewable and non-renewable resources

Describe how fossil fuels are formed

Describe how we get energy from fossil fuels

We use many of the Earth’s resources to generate energy

Key Point #1: All resources are one of two typesRenewableNon-renewable

Two types of resources

Two types of resources

Non-renewable resources: rate of consumption is greater than regeneration rate Will someday run out Examples: coal, natural gas, oil

Renewable resources: regeneration rate is greater than rate of consumption Will not run out (at least until the Sun dies) Ex: Wind, solar, water, geothermal energy

Renewable or non-renewable?

Non-Renewable!!!Non-Renewable!!!

Renewable or non-renewable?

Renewable!!!Renewable!!!

Renewable or non-renewable?

Renewable!!!Renewable!!!

Renewable or non-renewable???

Non-Renewable!!!Non-Renewable!!!

Renewable or non-renewable?

Renewable!!!Renewable!!!

Renewable or non-renewable???

Non-Renewable!!!Non-Renewable!!!

Fossil Fuels

Key Point #2: Fossil fuels are formed over millions of years Fossil fuels = energy source formed

from the fossils of dead organisms Examples: Oil, coal, and natural gas

How? Dead organisms settle to the bottom of

oceans/lakes Buried under many layers of earth Enormous pressure and heat changes them

into fossil fuels

Rate of consumption

Fossil fuels take millions of years to form

The United States consumes 20 million barrels of oil, 62.5 billion cubic feet of natural gas, and 2.5 million tons of coal each day

What does this mean…?

Uh-oh

Fossil fuels make up

85% of all United States energy

sources!

Fossil fuels make up

85% of all United States energy

sources!

Clicker questions..

Key Point #1: All resources are either renewable or non-renewable Non-renewable resources: rate of

consumption is greater than regeneration rate

Renewable resources: regeneration rate is greater than rate of consumption

Key Point #2: Fossil fuels are formed over millions of years Non-renewable Make up 85% of our total energy

Exit Questions

Some scientists estimate that current oil reserves are sufficient to create 800 billion barrels of oil. Total world consumption of oil is 76 million barrels per day, which means that there is enough oil left for about 27 years (at present rate of consumption). Based on the above description, what type of

resource is oil? Why? Describe in detail how fossils become oil.

Identify two renewable resource, and explain why EACH of them is renewable.