Warm- Up

Take a seat and update your table of contents.

Take a copy of Test 2 Most Missed and begin answering the questions.

TOC:46. Test 2 Most Missed47. What’s it made of?48. Earth’s Resources49. Worksheet 4.1Keywords:• Renewable• Nonrenewable• Fossil fuel• Ore

Earth’s Resources

ResourcesRenewable resource: can be

replenished over a short amount of time

Ex: food, natural fibers, trees; wind, solar, and hydro- power

Nonrenewable resources: takes millions of years to form and accumulate

Ex: coal, oil, natural gas, iron, copper, uranium, gold

Any hydrocarbon that may be used as a form of energy (coal, oil, natural gas) is a FOSSIL FUEL

Electric plants use 70% of mined coal

Coal burning increases acid rain. What other harmful affects exist?

CoalCoal: heat and pressure transform plant materialPeat-> lignite -> bituminous-> anthracite (hard coal)

US Coal Fields

Oil and Natural GasForm from remains of plants &

animals buried in ancient seas.

large amounts of remains become trapped in ocean sediments

Chemical reactions transform remains into hydrocarbons

Oil traps stack oil & gas on top of water due to density; anticlines

Alternative FuelsTar Sands: mixtures of clay and

sand with thick tar called bitumen

• Oil can not be pumped away easily

• Extracting and refining requires half of the energy gained!

Oil Shale: rock with hydrocarbon kerogen

• Energy is only 1/8 of crude oil• Unprofitable in common

regions

Mineral Deposits• Almost everything contains a derivative of or actual mineral• Ore is a useful metallic mineral that can be mined for profitSome form as the result of igneous processes (heavy minerals

crystallize from magma) and hydrothermal solutions (hot, metal- rich fluids after movement of magma

Placer Deposits

• Heavy minerals settle in moving water

• Gold!- largest found was 210 pounds

Nonmetallic Mineral Resources• Desirable due to

their properties (fluorite and limestone)

• 2 groups are building materials and industrial minerals

• See chart on page 101.

• US is made up of 6% of the world’s population

• US consumes 30% of energy resources

• 90% of energy in US is from fossil fuels

• http://www.google.com/imgres?imgurl=http://v3.caseyresearch.com/images/China.gif&imgrefurl=http://contraryinvesting.com/commodities/china-vs-us-energy-consumption-by-source-1965-2010-with-charts/&usg=__oBvQ_B-bDMdJCOEVITw6rI4rdLg=&h=437&w=601&sz=17&hl=en&s

• http://www.ritholtz.com/blog/wp-content/uploads/2010/06/world-oil-consumption-001.jpg

• http://www.ifitweremyhome.com/

Assignment

• Complete the worksheet using your notes and the book.