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Minor Versionm

by Procheta Mallik

Introduction

We see metals in all kinds of shapes in our daily life: rods, sheets, wires, plates etc. Here, we conduct a simple experiment to see if metal wires and other materials can be made flat, i.e. testing them for their malleability

    • Be extremely careful while using the hammer/pliers.

  1. Take a piece of copper wire (25 gauge or thicker, about 15cm long). Hammer it to try and make it flat. Be extremely careful while hammering. Do not injure your hand/fingers.
    • Take a piece of copper wire (25 gauge or thicker, about 15cm long).

    • Hammer it to try and make it flat.

    • Be extremely careful while hammering. Do not injure your hand/fingers.

  2. Take a piece of thick binding wire (about 15cm long). Hammer this too and try and make it as flat as you can! Hammer this too and try and make it as flat as you can!
    • Take a piece of thick binding wire (about 15cm long).

    • Hammer this too and try and make it as flat as you can!

  3. Now do the same with a piece of chalk Does it become flat? Does it become flat?
    • Now do the same with a piece of chalk

    • Does it become flat?

  4. Repeat the same exercise for a piece of lead from a pencil What do you observe in this case? What do you observe in this case?
    • Repeat the same exercise for a piece of lead from a pencil

    • What do you observe in this case?

    • Not hammering hard enough

    • The wire is too short to be hammered.

    • Hammering the wire for too long could break the wire.

    • Can you categorise the four items as "malleable" and "non-malleable"?

    • Record the number of times you hammered each of the items.

    • Repeat for different materials: metals and non-metals and record your observations.

Finish Line

Vishal Bhatt

Member since: 04/26/2017

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