1. Eggs to the bottle
Stem Activity for Students/Teachers

2. Activity Subject: Pressure
Aim of the experiment is to demonstrate the need for oxygen for combustion. The relation between air pressure and inner pressure

3. Experiment / Activity Materials:
Boiled egg
Glass bottle
Match
Paper

4. Experiment / Activity Security:
Open Flame Alert
Cloth
Glove
Fragile Glass Alert
Fire Safety

5. Experimental Procedure:
Let's throw away the pieces of paper that burn into the empty milk bottle.
Peel the scrambled egg and cover it in the mouth of the bottle and press it down.
Observe and discuss what is happening.

6. Conclusion
As the internal pressure decreases due to combustion, the egg is pushed into the bottle under the influence of the external pressure (atmospheric pressure).
Oxygen is required for the combustion process and oxygen will be tried to be taken in through the bottle mouth. But when the bottle is closed, it will be seen that the egg moves inward instead of air.