Mango's Chemical Lighthouse of Light — Questions and answers

Read the full story

What did David give Rafi that makes light using only chemistry?

Choices

  1. A small glass vial.
  2. A thin plastic tube called a glow stick. ✓
  3. A new type of lightbulb.
  4. A piece of cold fire.

Answer: A thin plastic tube called a glow stick.

From page 2

According to David, where and when did the idea of creating light by accident first start?

Choices

  1. San Francisco, last year.
  2. Bologna, Italy, in 1603. ✓
  3. In a magical kingdom, long ago.
  4. In a futuristic, shiny workshop.

Answer: Bologna, Italy, in 1603.

From page 3

What was Vincenzo Casciarolo's profession and hobby?

Choices

  1. He was a famous professor and a gold miner.
  2. He was a shoemaker and an amateur alchemist. ✓
  3. He was a hiker who taught science.
  4. He was a secret agent and a stone collector.

Answer: He was a shoemaker and an amateur alchemist.

From page 4

What kind of stone did Vincenzo find on Monte Paderno?

Choices

  1. A very light stone that was dull and gray.
  2. A stone that was unusually heavy and sparkled in the sun. ✓
  3. A small, ordinary pebble.
  4. A stone that looked like a piece of gold.

Answer: A stone that was unusually heavy and sparkled in the sun.

From page 5

What are two other things Rafi and David mentioned that glow?

Choices

  1. Car headlights and streetlights.
  2. The sun and the moon.
  3. Glowing stars on a ceiling and watch hands that glow. ✓
  4. Pizza ovens and refrigerators.

Answer: Glowing stars on a ceiling and watch hands that glow.

From page 9

What did Rafi understand about how some chemical reactions release energy?

Choices

  1. They always release energy as heat.
  2. They can release energy as light instead of heat. ✓
  3. They only release energy when something breaks.
  4. They stop releasing energy when it gets dark.

Answer: They can release energy as light instead of heat.

From page 10