How Glass is Made from Sand — Questions and answers

Read the full story

What were Katya and Omar building at San Francisco's Ocean Beach?

Choices

  1. A. A shiny window
  2. B. A sandcastle ✓
  3. C. The Cliff House restaurant
  4. D. A market stall

Answer: B. A sandcastle

From page 1

According to Karim, what did the ancients add to sand to help it melt into glass?

Choices

  1. A. Water
  2. B. Shiny windows
  3. C. Ash from burnt plants ✓
  4. D. Ocean salt

Answer: C. Ash from burnt plants

From page 2

What did Katya imagine someone seeing sparkle in the firelight during the first discovery of glass?

Choices

  1. A. Clay
  2. B. Wood
  3. C. Stone
  4. D. Something entirely new ✓

Answer: D. Something entirely new

From page 3

What did the first glassmakers in Mesopotamia use sand to create a shiny glaze on?

Choices

  1. A. Windows
  2. B. Their clay pots ✓
  3. C. Sandcastles
  4. D. Metal tools

Answer: B. Their clay pots

From page 4

What famous quote did Katya remember from the philosopher Aristotle?

Choices

  1. A. "Glass is pure magic."
  2. B. "All men by nature desire to know." ✓
  3. C. "It's all about chemistry."
  4. D. "The world would have felt so different."

Answer: B. "All men by nature desire to know."

From page 5

How long does light take to travel from the sun to Earth, according to Omar?

Choices

  1. A. Instantly
  2. B. 8 minutes and 20 seconds ✓
  3. C. 3,000 degrees Fahrenheit
  4. D. Thousands of years

Answer: B. 8 minutes and 20 seconds

From page 7

What did Katya explain helps the sand melt together to become glass?

Choices

  1. A. Ocean water
  2. B. Wind
  3. C. Plant ash ✓
  4. D. Smoothness

Answer: C. Plant ash

From page 8

What everyday item did Omar realize was made of glass when he pointed at Katya?

Choices

  1. A. A bus windshield
  2. B. A phone screen
  3. C. Lightbulbs
  4. D. The lenses in his glasses ✓

Answer: D. The lenses in his glasses

From page 9