Who can give me the simplest scientific experiment video (small experiment, small production, small photography, small painting, etc. ) and make (slide PPT format)

I walked onto the stage and lit it with a pear block two centimeters square prepared in advance according to the teacher's demonstration method. My heart is like fifteen buckets, seven above and eight below. The teacher said, "It's okay, just put the pear in your mouth, shut your mouth and stop breathing for a few seconds!" " I bravely put the fiery red pear block in my mouth and did as the teacher said, hey! It's really not hot, it's cool and delicious! I asked the teacher, "Why is the burnt pear delicious instead of spicy in your mouth?" The teacher said with a smile, "This is because there is not much water in pears. After soaking in white wine, the water further infiltrates. So after being ignited, the alcohol outside the pear block burns, and there is a lot of water inside for steaming. Put the pear block in your mouth, stop breathing, the mouth is short of oxygen, the fire goes out, and your mouth will naturally be fine. "

After listening to this, the students are boiling and want to swallow the fire.

This is really boring! When I grow up, I must study hard and explore more scientific mysteries!