Vocabulary

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Across
  1. 6. it is there to keep the flame from igniting the ballon
  2. 7. having been emptied of air or gas.
  3. 10. a hole that allows hot air to escape
  4. 11. a measurement that compares the amount of matter an object has to its volume
  5. 12. The opening at the base of the balloon through which the flames from the burner passes to heat the air inside the balloon
  6. 14. filling something with air or gas so that it becomes big
  7. 15. upward force in the balloon
Down
  1. 1. strength or energy exerted or brought to bear : cause of motion or change : active power
  2. 2. a section of fabric running from top to bottom of the balloon
  3. 3. the attraction of the mass of the earth, the moon, or a planet for bodies at or near its surface
  4. 4. an act of ascending; upward movement; a rising movement
  5. 5. an upward force that the air exerts on them. The balloon must weigh less than the air it
  6. 7. is the force of flight that slows objects down
  7. 8. this is the actual “balloon” and is usually made out of nylon panels or “gores”.
  8. 9. It is what propels the hot air up into the envelope to make the balloon move upwards into the air
  9. 13. the passenger goes into this