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Why the smoke always go up

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Why the smoke always go up

Posted by Anushka Parchake 6 years, 2 months ago

CBSE > Class 07 > Science

2 answers

Sarthak Dhir Samanta 6 years, 2 months ago

you will see that one polythene is going up and other not.

Sarthak Dhir Samanta 6 years, 2 months ago

Smoke always go up because it is hot , and hot air is lighter than cold air , and light air always rises up. Experiment : Step 1: Take 2 polythene , and tie string on each of its bottom. Step 2: Tie these polythene upside down on a rod / wooden stick etc. Step 3: Make sure that tie these polythene apart from each other. Step 4: Take 2 candles. Step 5: Flame one these candles, not other . Step 6: Put both these candles below and apart from both these polythene. YOU WILL SEE THAT TH

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