Mexico: Tlachtli
Germany: Valence
Great Britain: Early Clues
Switzerland: Macromolecules
Delaware: Proof 

Using Rubber Destinations

Ecuador: Sometimes Useful
France and Great Britain: Balloons and Raincoats
Hancock's Pickle
Massachusetts: Goodyear's Accident
Singapore: Ridley's Rubber Farms
Northen Ireland: Little Dunlop's Tricycle
Eastern Asia: The Rubber Crisis

Science Sidetrips:

Meet Polyisoprene
Why Does It Stretch?
One Big Happy Molecule
Thermoplastic Elastomers

Brazil: Sweet Beginning
Great Britain: A Slow Start for Synthetics
France: Caoutchouc Artificiel
Great Britain: Turpentine
New York City: Supply and Demand
Germany: Blockade
Chesapeake Bay: Rubber Smugglers
Germany: A Poor Substitute
South Bend, Indiana: Reverend Rubber
Kansas City, Missouri: This Isn't Antifreeze
New Jersey: Sharing With Standard
Germany: The Birth of Buna
Germany: Bright Times for Buna
New Jersey: Airliners
Washington D. C.: Government Rubber

Natural Rubber Quiz
Natural Rubber Quiz for Living in a Material World
Synthetic Rubber Quiz
Synthetic Rubber Quiz for Living in a Material World