WONDER #786: How Do Things Glow in the Dark?

Question 1 of 3

Glowing in the dark is also known as...

  1. energized.
  2. luminescence.
  3. strontium aluminate.
  4. camouflage.

Question 2 of 3

What has to happen before phosphors can radiate visible light?

  1. They have to be washed thoroughly.
  2. They need to be warmed up in the oven.
  3. They need to be exposed to light.
  4. They have to be left alone for several hours.

Question 3 of 3

Which of these is NOT a reason for living creatures to glow in the dark?

  1. Protection
  2. Camouflage
  3. Find food
  4. Attract mates

Check your answers online at https://www.wonderopolis.org/wonder/how-do-things-glow-in-the-dark.