Wings, Tails and Flaps: teacher key

Airplanes, grade 3 edition, written for 3rd grade. A plane's wings make lift and its engines make thrust. See how a pilot rolls and turns the plane, how flaps help it land slowly, and how the Wright brothers flew in 1903.

Read the book. Print this page for the key.

Questions and answers

1. What do the ailerons control?
   • Pitch
   • Yaw
   • Roll (answer)
2. What does a plane need to make lift?
   • To be moving through the air (answer)
   • To fly over the ocean
   • To carry fuel
3. What happens to the air as a plane goes higher?
   • It gets thicker
   • It gets thinner (answer)
   • It stays the same
4. What do spoilers do after the wheels touch down?
   • Add lift
   • Pop up and spoil the lift (answer)
   • Make the plane climb
5. What is a slat?
   • A movable part on the front edge of a wing (answer)
   • A part of the tail
   • A kind of engine
6. How long did the first flight last?
   • 12 seconds (answer)
   • 12 minutes
   • One hour

Words

• ailerons: back wing parts
• rudder: tail part
• spoilers: top wing parts
• slat: front wing part