WONDER #1186: How Does a Hot Air Balloon Fly?
Question 1 of 3
Hot air balloons fly because hot air does what?
Question 2 of 3
If you wanted to bring your hot air balloon back to the ground, what would you release?
- brake line
- parachute valve
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 cubic foot
- 10 cubic feet
- 1,000 cubic feet
- 100 cubic feet
Check your answers online at https://www.wonderopolis.org/wonder/How-Does-a-Hot-Air-Balloon-Fly.