Training, Tracking and Treaty: teacher key

Astronauts and Space Travel, grade 10 edition, written for 10th grade. Astronauts are chosen and trained on Earth, and the space station recycles about 90% of its water. The book also covers the Deep Space Network, the Outer Space Treaty and NASA's Moon and Mars plans as of November 2026.

Read the book. Print this page for the key.

Questions and answers

1. What does a centrifuge press on astronauts with?
   • The g-forces they feel during launch (answer)
   • The weight of water
   • The pull of the Moon
2. About how much of its water does the space station recycle?
   • About 90% (answer)
   • About 50%
   • About 10%
3. A spacecraft drops out of sight of the Madrid site. Which sites could pick up its signal?
   • Only another site in Spain
   • Goldstone or the one near Canberra (answer)
   • None of them
4. Could a citizen of France apply to be a NASA astronaut as of November 2026?
   • Yes, if the degree is in STEM
   • Yes, if the work experience is long enough
   • No, applicants must be U.S. citizens (answer)
5. What does the Outer Space Treaty say the Moon is to be used for?
   • Mining
   • Exclusively peaceful purposes (answer)
   • Claims by any country

Words

• microgravity: tiny gravity
• centrifuge: spinning machine
• buoyant: able to float
• appropriation: taking as owned