Question

SCIENCE
1. Take a tumbler and fill it with water. Cover the mouth of the tumbler with a
thick card similar to that of a postcard. Hold the tumbler with one hand while
keeping the card pressed to its mouth with your other hand. Turn the tumbler
upside down while keeping the card pressed to its mouth. Make sure that the
tumbler is held vertical. Gently remove the hand pressing the card. What do
you observe? Does the card get detached allowing the water to spill? With a
little practice you will find that the card continues to hold water in the tumbler
even after it is not supported by your hand. Also try this activity by using a
piece of cloth to hold the tumbler in an upside down position. Record your
observation in notebook.
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Answer 1

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