1. Air like most other substances, expands when heated because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
2.The warmth of the air expands the air because each molecule uses more space for motion, the air expands and becomes less dense. Therefore, the air expands when heated.
Answers & Comments
Answer:
1. Air like most other substances, expands when heated because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
2.The warmth of the air expands the air because each molecule uses more space for motion, the air expands and becomes less dense. Therefore, the air expands when heated.
Explanation: