Fill in the gaps with the missing words

When Joseph Montgolfier saw small pieces of paper coming out of the chimney, he ... that smoke had the power to ... things up and carry them through the air. Joseph loved science and wanted to become an inventor, so he started trying to think of a craft that would be able to ... smoke and heat and lift people off the ground. Along with his brother, Jaques, he began performing ... on something that later became the first hot-air ballon. The new invention was a great success and the first passengers landed ... .