WONDER #1186: How Does a Hot Air Balloon Fly?

Question 1 of 3

Hot air balloons fly because hot air does what?

1. rises
2. falls
3. sinks
4. stinks

Question 2 of 3

If you wanted to bring your hot air balloon back to the ground, what would you release?

1. brake line
2. parachute valve
3. anvil
4. doves

Question 3 of 3

If you wanted a hot air balloon to lift about 700 grams, you’d need about how much air inside the envelope?

1. 1 cubic foot
2. 10 cubic feet
3. 1,000 cubic feet
4. 100 cubic feet

Check your answers online at https://wonderopolis.org/wonder/How-Does-a-Hot-Air-Balloon-Fly.