Test your knowledge of the World Cup ball

 

1. 1. They are thermally molded
   2. They are glued
   3. They are stitched

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Answer 1

 

 

1. Because the chemicals used in the tanning process of leather are not environmentally friendly
2. Because leather looks old-fashioned
3. Because leather tends to absorb water

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Answer 3

 

 

1. Circumfence, sphericity, rebound, weight, loss of pressure, shape and size retention, design
2. Circumfence, sphericity, rebound, water absorption, weight, loss of pressure, shape and size retention, flight characteristics
3. Circumfence, sphericity, rebound, water absorption, weight, loss of pressure, shape, and size retention

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Answer 3

 

 

1. It does not allow the ball to have same angle re-bound characteristics
2. It does not allow the ball to bounce properly
3. It does not provide the best air retention

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Answer 3

 

1. The bladder of the ball is fillded with ozone-free air
2. The ball contains an near-field communication (NFC) chip
3. The ball is made from rubber with bio-based ethylene

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Answer 3

NFC chip: When the ball is tapped by a smartphone, it shows users personalized content. This feature is designed for consumer use and not World Cup matches.

 

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Also of Interest

• Chemistry of the World Cup 2018 Ball,
  ChemistryViews.org 2018.
  Telstar 18, is made of bio-based EPDM rubber
• The Science of Football,
  ChemViews Mag. 2012.
  DOI: 10.1002/chemv.201200063
• Chemistry of Brazuca, the World Cup Football,
  ChemistryViews.org 2014.
  The 2014 World Cup football Brazuca has five polyurethane layers which make for its uniqueness