* The Experiment: You're likely thinking about an experiment where a hard-boiled egg is placed inside a flask with a narrow neck. When the flask is heated, the egg gets pushed into the flask.
* The Science: The reason this happens is due to air pressure. Here's the breakdown:
1. Normal Pressure: When the flask is at room temperature, the air inside is at normal atmospheric pressure.
2. Heating the Flask: As you heat the flask, the air inside expands because the molecules move faster. This increased movement puts more pressure on the walls of the flask.
3. Pressure Difference: The pressure inside the flask is now higher than the pressure outside the flask. Since the flask's neck is narrow, the pressure difference can't be released easily.
4. The Egg: The egg is blocking the neck of the flask. The higher pressure inside pushes on the egg, forcing it into the flask.
* Important Note: This experiment works because the egg has already been hard-boiled. A raw egg wouldn't be able to withstand the pressure and would probably break.
To summarize, the egg goes into the flask because the heated air inside the flask creates higher pressure than the air outside, and the egg is the only way for that pressure to escape.
