WONDER #1615: How Do CDs Work?

Question 1 of 3

What does CD stand for?

  1. compact disc
  2. crucial data
  3. convertible data
  4. circular disc

Question 2 of 3

Most of a CD consists of a tough plastic called what?

  1. tupperware
  2. aluminum
  3. lacquer
  4. polycarbonate

Question 3 of 3

CDs contain a thin layer of which metal?

  1. hydrogen
  2. iron
  3. aluminum
  4. manganese

Check your answers online at https://www.wonderopolis.org/wonder/how-do-cds-work.