Question

Can anyone tell me two experiments of matter experimentally to write in project of class 7​

Answer 1

Answer:

1 . Egg in the Bottle

As the flame burns inside the bottle, it heats up the air around it, causing it to expand. If you see your egg vibrating slightly, this is because air is escaping from the bottle. When the flame goes out, the air in the bottle cools and shrinks. This is what sucks the egg into the bottle!

2 . Fizzy Candy

This recipe keeps the citric acid and baking soda separate until you eat it. When these two ingredients combine with the saliva in your mouth, it creates carbon dioxide gas. It doesn’t “pop” like the fizzy candy sold in stores, but you are still experiencing a chemical reaction in your mouth!