Question

You dropped pieces of burning paper into a wide necked bottle and placed a boiled egg at the mouth of the bottle. The egg will get stuck into the bottle. Why?

Answer 1

Explanation:

the answer is all about air pressure . When you first set the age on the bottle, the air pressure inside the bottle matched the air pressure outside, so nothing happened. when you dropped the burning paper into the bottle, it caused the air inside to heat up and expand rapidly.