Question from Weekly Prized Science Hub Challenge (19 October)

19 Oct

Question from Weekly Prized Science Hub Challenge (19 October)

Closing Date: 31 October 2012

As a kitchen utensil specialist in IKEA, Lily intends to create a cooking pot which is able to cook food at a rapid rate. She then investigates two cooking pots

 made of the same material. She puts water and a piece of carrot into the pots, covers them with lids, and turns on the stove.

(a) Besides material of the cooking pots, which other variables should be kept constant to ensure the fairness of this experiment? Give 5 options.
(b) Based on your hypothesis, which carrot would be cooked at a faster rate? Explain why.
(c) However, after a while, Lily finds out that the carrots from both setups are still half-cooked. Besides increasing the hotness of stove, what can she do to increase the rate of cooking? Explain.

Photo: WEEKLY PRIZED SCIENCE HUB CHALLENGE 2012(Post your answer by 31 October 2012)As a kitchen utensil specialist in IKEA, Lily intends to create a cooking pot which is able to cook food at a rapid rate. She then investigates two cooking pots made of the same material. She puts water and a piece of carrot into the pots, covers them with lids, and turns on the stove.  (a) Besides material of the cooking pots, which other variables should be kept constant to ensure the fairness of this experiment? Give 5 options.(b) Based on your hypothesis, which carrot would be cooked at a faster rate? Explain why.(c) However, after a while, Lily finds out that the carrots from both setups are still half-cooked. Besides increasing the hotness of stove, what can she do to increase the rate of cooking? Explain.
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One Response to “Question from Weekly Prized Science Hub Challenge (19 October)”

  1. matharena November 15, 2012 at 11:44 am #

    Please follow this link for the suggested solution to the Weekly Prized Science Hub Challenge (19 October): https://matharena.wordpress.com/2012/11/01/solution-to-weekly-prized-science-hub-challenge-19-october/

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