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1.2

Minor Versionm

by Procheta Mallik

Introduction

A spiral is made alongwith the oboe to create a spinning "trunk" as you blow through the oboe

Tools

Parts

    • Handle the Scissor with care.

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  1. Flatten the end of a straw and cut the end of the straw in a triangular shape of about 2cm
    • Flatten the end of a straw and cut the end of the straw in a triangular shape of about 2cm

    • From side-on, the cut should look like a crocodile’s jaw!

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    • Starting from the uncut end of the straw, place the scissor at an angle such that you cut the straw into a spiral using up about half the length of the straw

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    • Blow through the straw with the cut end in your mouth.

    • The spiral should spin around. Even better if you can get the whistling sound as well as the spinning spiral!

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    • Blowing too hard

    • Blowing too slowly

    • Triangular baby crocodile’s mouth (reed) is too small

    • Not enough of the reed inside the mouth

    • The straw not flattened enough at the cut, i.e. the reeds are too far apart

    • It’s quite likely that when the straw makes a sound, the spiral doesn’t spin satisfactorily and vice-versa

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    • Why does the sound stop when you blow too hard or too softly?

    • Measure the length of the straw

    • Hum the same note the straw makes; can you produce more than one note? If so, how many? If not, why not?

    • How many notes can you produce now?

    • Why do you think it is tricky to make both aspects of the toy work satisfactorily in unison?

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Finish Line

One other person completed this guide.

Kailash NR

Member since: 05/02/2017

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