Question

Activity to show that the existence of atmospheric pressure

Answer 1

Aim - To show the existence of atmospheric pressure.
Materials required — 1.Plastic water bottle
2. Card board

Procedure-
Fill a cup one-third with water. Cover the entire mouth with an index card. Holding the card in place, take the cup to the sink and turn it upside down. Remove your hand from underneath.

Observation- Because the water inside the cup is lighter than the air outside, the card is held in place by about 15 pounds of force from the air pushing up, while the force of the water pushing down is only about one pound of force.
I hope this might help you. Thank you.

Answer 2

Hey mate here is your answer