Mars Up Close: teacher key

Mars, grade 5 edition, written for 5th grade. Mars is a cold desert world with a huge volcano and a huge canyon. Spacecraft, rovers and a helicopter have visited it.

Read the book. Print this page for the key.

Questions and answers

1. Which spacecraft sent back 21 pictures of Mars in 1965?
   • Mariner 4 (answer)
   • Viking 1
   • Curiosity
2. How many times did Ingenuity fly on Mars?
   • 5
   • 72 (answer)
   • 687
3. Mars is tilted about 25 degrees, close to the tilt of Earth. What does this tilt give Mars?
   • Seasons (answer)
   • Rings
   • A moon
4. Ingenuity was built for five test flights. It flew 72 times. How many more flights than the five did it fly?
   • 67 (answer)
   • 77
   • 72
5. What does sol mean?
   • A day on Mars (answer)
   • A kind of rover
   • A moon of Mars

Words

• sol: a Mars day
• flyby: a close pass
• lander: a landing craft
• rover: a robot car
• lumpy: not round