7. The balloon envelope holds the hot air to rise.
8. The balloon envelope is made from durable flame-resistant nylon material.
9. The reason the balloon envelope is made from durable flame-resistant nylon material is that the burner shoots a flame into the balloon envelope which is hot. The Balloon Envelope
10. The burner has a propane tank and a pilot light. The propane tank holds the propane gas and the pilot light holds the light. When propane gas burns and makes the flame air becomes hot. More the gas is burned more the air becomes hot. More air makes the balloon rise higher. The Burner
11. The wicker basket holds the propane tank and the passengers. The Wicker Basket