The Connection Between Space and Earth — Questions and answers

Read the full story

What did Petra learn about why we can run out of water even though most of Earth is water?

Choices

  1. Most of Earth's water is saltwater. ✓
  2. Most of Earth's water is ice.
  3. People use too much water for showers.
  4. The water gets lost in space.

Answer: Most of Earth's water is saltwater.

From page 2

What did Alexander von Humboldt believe about understanding a single leaf?

Choices

  1. You had to understand its color.
  2. You had to understand the entire world. ✓
  3. You had to find its specific tree.
  4. You had to know its exact size.

Answer: You had to understand the entire world.

From page 4

What could winds carry from the Sahara desert all the way to the Americas, according to Humboldt's realization?

Choices

  1. Ships and boats.
  2. Moisture and dust. ✓
  3. Rain and snow.
  4. Animals and birds.

Answer: Moisture and dust.

From page 6

What tracks Saharan dust clouds today, showing connections from space?

Choices

  1. Airplanes.
  2. Balloons.
  3. Satellites. ✓
  4. Telescopes.

Answer: Satellites.

From page 7

What did Petra's mom say that solar flares, which happen in space, can do on Earth?

Choices

  1. Make flowers grow faster.
  2. Knock out power grids. ✓
  3. Make the ocean warmer.
  4. Create new types of clouds.

Answer: Knock out power grids.

From page 9

What did Petra write in her notebook about Earth science and space science?

Choices

  1. They are very difficult subjects.
  2. They are two parts of the same amazing story. ✓
  3. They are separate things that don't connect.
  4. They are only for grown-ups to study.

Answer: They are two parts of the same amazing story.

From page 10