Teacher Phyllis' magic power is thinning like her voice due to her sore throat! She let us try different ways for the hot air balloon to lift into the sky. But all of them couldn't even lift to my height!
So upon her probing, some of us guessed that there are holes on the plastic bag, that is how we learnt about the meaning of the word 'airtight'. Others said the 'fire' is not hot enough, one of them thinks that perhaps we should do the experiment outdoor. She took our suggestions seriously. She is like that, never give up and expects us to be like her!
So we tried out the 1st variable keeping the other conditions constant. She said that it is important to be fair to each factor so that we don't accuse the plastic bag nor the flame for not doing its job! Take your breath, sit back and relax!
'Hot Air Balloon II' launching soon...
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