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Pearson 6th grade Earth Science

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Page 1: Energy
Page 2: Energy

1. _____- a substance that provides energy as the result of a chemical change

fuel

Page 3: Energy

2. _______- the ability or capacity to do work

energy

Page 4: Energy

3. ___________________- changing one form of energy to another (EX. Hand rubbing is changing mechanical energy to thermal energy)

energy transformation

Page 5: Energy

4. _____________- burning to release energy

combustion

Page 6: Energy

4b._____________- energy-rich 4b._____________- energy-rich substances in fossil fuelssubstances in fossil fuels

hydrocarbonshydrocarbons

Page 7: Energy
Page 8: Energy

5. ___________- energy-rich substances formed from the remains of dead organisms

fossil fuels

Page 9: Energy

A. Coal-- solid fossil fuel formed from plant remains

Adv.-_______________________

Dis.- ______________________

most abundant fossil fuel

produces air pollution

Page 10: Energy

B. Oil- thick, black liquid formed from the buried remains of __________________________________________Adv.-____________________________Dis.-____________________________

microscopic marine

organismsGood value

for the energy produced

Air pollution;Spills harm environment

Page 11: Energy

1) ___________- another name for crude oil; “petra” means “rock” and “oleum” means “oil”

petroleum

Page 12: Energy

2) _________- factory in which crude oil is heated and separated into fuels and other products

refinery

3) ____________- compounds made

from oil that are used to make plastics,

paints, medicines, and cosmetics

petrochemicals

Page 13: Energy

C. Natural gas- the gaseous state of matter formed from _______ ____________________in ocean sediment; often found in pockets above oil reserves

Adv._______________________

Dis. ________________________

marineorganisms (plankton)

Cleanest of the fossil fuels

Will run out in 50 years

Page 14: Energy

D. ________- by-product of natural gasAdv.- _____________________________________________________Dis.- ________________________

Clean enough to be used on indoor vehicles, like a forklift Very short supply

propane

Page 15: Energy
Page 16: Energy

A. _______- splitting of atoms; uses uranium-235; non-renewable

fission

Adv.- _____________________

Dis.-

no smog, acid rain or greenhouse effect

radiation poisoning, nuclear waste______

Page 17: Energy
Page 18: Energy

B. _______- combines hydrogen atoms; how the sun generates energy

Adv. _________________________

Dis.-

fusion

large amounts of energy from little materiallarge amounts of energy from little material

not practical because of the not practical because of the high temperatures neededhigh temperatures needed

Page 19: Energy
Page 20: Energy
Page 21: Energy

7. Solar energy- energy from the ___; Adv. __________, ______, _____, _______________; Dis.- can be affected by _______, ___________, ________, and ________

sun

weather time of daylatitudeseasons

clean safeinexpensivereadily available

Page 22: Energy
Page 23: Energy
Page 24: Energy

8. water- _____________________; Adv.- clean, no air pollution, inexpensive; Dis.-; dams increase upstream _________ and downstream _______; habitats are flooded

hydroelectric energy

erosionsediment

Page 25: Energy
Page 26: Energy
Page 27: Energy

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9. ____- Adv.-non-polluting, no waste, inexpensive; Dis.-unreliable, ______ pollution

windvisual

Page 28: Energy
Page 29: Energy
Page 30: Energy

10. ______________- burns organic materials such as ____, ________, and _______

biomass energywood alcohol

garbage

Page 31: Energy
Page 32: Energy
Page 33: Energy

A. ____- Dis.-gases released when burned; habitats are destroyed

wood

Page 34: Energy

B. _______- formed from distillation; Adv.- can be mixed with other fuels to make gasoline last longer

alcohol

Page 35: Energy

C. _______- Dis.- burning can produce toxic ash residue and air pollution; Adv.- cheap source of energy; reduces _________________

garbagegarbage

landfill deposits

Page 36: Energy

11. ___________-uses hot magma or hot, dry rocks from within the Earth; Adv.- clean; Dis.-limited availability; high cost

geothermal

Page 37: Energy
Page 38: Energy

12. ____________- power from the rise and fall of the ocean (tides)

Tidal power

Page 39: Energy
Page 40: Energy

13. ___________________- reducing energy useEnergy conservation

Page 41: Energy

A. ___________- the percentage of energy used to perform work

efficiencyefficiency

Page 42: Energy
Page 43: Energy

B. ___________- layer of material that helps block the transfer of heat between

the air outside and inside a building

insulationinsulation

Page 44: Energy

14. ____________- using _____________ to become _________

A. Advantages1. Reduces _______ for new mineral resources2. Uses less _______3. Can be __________

old materialsnew ones

demand

energyprofitable

RecyclingRecycling

Page 45: Energy

B. Disadvantages1. Takes ____

2. Takes _____time

effort

Page 46: Energy
Page 47: Energy