Why the Sky Is Blue — Questions and answers

Read the full story

What big question did Lina ask her Mama about?

Choices

  1. Why honey is so old.
  2. Why the sky is so blue. ✓
  3. Where Egyptian tombs are.
  4. If they could eat the honey.

Answer: Why the sky is so blue.

From page 1

What was John Tyndall's main job or title?

Choices

  1. An archaeologist.
  2. A mountaineer.
  3. A physicist. ✓
  4. A public speaker.

Answer: A physicist.

From page 4

What was John Tyndall trying to do in his lab for many hours?

Choices

  1. Eat honey.
  2. Draw pictures of mountains.
  3. Replicate the sky in a box. ✓
  4. Study ancient artifacts.

Answer: Replicate the sky in a box.

From page 5

What amazing thing happened when John Tyndall shined white light through his special tank?

Choices

  1. The light disappeared.
  2. The mixture turned red.
  3. The beam of light glowed a brilliant blue. ✓
  4. It created a rainbow in the tank.

Answer: The beam of light glowed a brilliant blue.

From page 6

According to Tyndall's discovery, what happens to the blue light waves?

Choices

  1. They pass straight through.
  2. They get scattered out to the sides. ✓
  3. They turn into red waves.
  4. They disappear entirely.

Answer: They get scattered out to the sides.

From page 7

What did Lina compare the air to when she finally understood why the sky is blue?

Choices

  1. A picnic blanket.
  2. The water in John Tyndall's tank. ✓
  3. A cypress tree.
  4. A lightning bolt.

Answer: The water in John Tyndall's tank.

From page 8

According to Lina's mother, why do some people have blue eyes?

Choices

  1. They have blue pigment in their eyes.
  2. Tiny fibers in the iris scatter light. ✓
  3. They spend too much time looking at the blue sky.
  4. They are related to John Tyndall.

Answer: Tiny fibers in the iris scatter light.

From page 9