Metals and Extraction

Which material is the most difficult to produce?

• Plastic

• Metals

• Glass

• Wood

Which metal is this video about?

• Iron

• Silver

• Gold

• Copper

When did the Copper Age begin?

• 2000 years ago

• 5000 years ago

• 10000 years ago

• 7000 years ago

What is the distinctive color of many forms of copper ores?

• Red

• Blue

• Yellow

• Green

How is copper refined in this video?

• Electrorefining

• Electroforming

• Electroplating

• Electrowinning

What dissolved the copper ore?

• Sulfuric acid

• Acetic acid

• Hydrochloric acid

• Nitric acid

What was the negative electrode during the electrowinning process?

• Aluminum

• Copper

• Stainless steel

• Zinc

What was used to melt the remaining copper off the steel cathode?

• Oven

• Incinerator

• Kiln

• Furnace

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What was the final yield of copper?

• 1.5 pounds

• 2 pounds

• 1 pound

• 0.5 pounds

Tags

NGSS.MS-PS1-5

What was the total cost to extract the copper?

• $500

• $600

• $400

• $300