Question

what should we write aim, material required, procedure, observation,reasult for fast pushing of thick paper kept on a glass tumbler
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Answer 1

$\sf{ \huge{ \underbrace{ \overbrace{\color{white}{\fcolorbox{white}{navy}{The \: Answer \: :-}}}}}}$

Material Required:-

• Drinking Glass

• Water

• Thick Sheet of Paper that is long and wide enough to cover the entire mouth of the glass. (We used a piece of poster board)

• Large Container or Sink

Procedure:-

Step 1 – Begin by filling the empty glass with water. Ensure that the water is completely to the top of the glass. If there is any space between the water and the paper, the experiment won’t work.

Step 2 – Gently place the paper on the top of the glass.

Step 3 – Move the glass over the container or sink. 

Step 4 – Gently place your hand on the paper, then flip the glass over. What do you think will happen if you remove your hand? Write down your hypothesis (prediction) and then follow the steps below.

Step 5 – Remove your hand from the bottom and watch in amazement as the paper stays covering the glass and the water doesn’t spill out. 

Observation:-

The reason this experiment works is because of air pressure! Air pressure is the weight of a column of air pushing down on an area. While we cannot feel it, the air is heavy! The weight of the air pushing down on all objects on Earth is the same as the combined weight of three cars! The reason we don’t feel this extreme weight is that the molecules in air push evenly in all directions – up, down, sideways, diagonally. In this experiment, the air pushing up from underneath the paper is strong enough to overcome the weight of the water pushing down on the paper. Because of the air pressure pushing up on the card, the card will stay on the glass and the water will not spill out.