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1.5

Minor Versionm

by Procheta Mallik

Introduction

Heat some water in a glass or beaker/pan. Place items made of different materials in it, with some part of them sticking out, e.g. metal spoon, comb, wooden stick, copper wire etc. Let them stay for a few min and "feel" the temperature after by measuring the time it takes to melt butter kept on the ends!

    • Handle hot water with care while pouring.

    • Heat the water under adult supervision

  1. Take a plastic bowl. Take different types of materials such as: a steel strip, plastic strip, ice cream stick, copper strip, aluminium strip .
    • Take a plastic bowl.

    • Take different types of materials such as: a steel strip, plastic strip, ice cream stick, copper strip, aluminium strip .

    • Now place all the above materials in the bowl.

  2. Take about 2.5g of butter Place a small amount (0.5g) of butter at the top end of each of the samples Place a small amount (0.5g) of butter at the top end of each of the samples
    • Take about 2.5g of butter

    • Place a small amount (0.5g) of butter at the top end of each of the samples

  3. Boil about 300 ml of water in a beaker/vessel. Fill the bowl with hot water . Allow the different materials to stay in the hot water bowl for 5-6min and observe.
    • Boil about 300 ml of water in a beaker/vessel.

    • Fill the bowl with hot water .

    • Allow the different materials to stay in the hot water bowl for 5-6min and observe.

  4. Different materials should melt the butter at different rates Different materials should melt the butter at different rates Different materials should melt the butter at different rates
    • Different materials should melt the butter at different rates

    • Make sure the water is hot enough - essentially boiling - when you take it off the stove

    • The different materials should not be immersed in hot water after pouring; they should already be placed in the bowl

    • The different materials should be of similar size, immersed equally and the butter should be placed at the same height for all

  5. Record your observation - the time taken to melt butter on different materials when placed in boiling water.
    • Record your observation - the time taken to melt butter on different materials when placed in boiling water.

    • Which substance is the best conductor, which the worst?

    • If available, try the same experiment with a silver spoon!

Finish Line

Suhail Ahanger

Member since: 05/02/2017

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