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CLIP 10895

Melting Glass

Melting Glass
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Key Info
  • Melting Glass
  • Duration: 02:57
  • Demonstrating that glass in a microwave oven doesn't normally get hot. This is explained by a brief description of how microwave ovens work by making molecules 'wiggle' and therefore heat up. This is followed by a demonstration of how a microwave can be used to melt a glass bottle. A small piece of glass is heated to red hot, allowing the molecules to 'wiggle'. This is then placed on top of a glass bottle and the bottle placed in the microwave and the bottle melts.
  • Subject:

    Science

       Topic:

    Phys: Waves - Uses

  • Keywords: waves, microwaves, microwave oven, heating, melting, molecules, electromagnetic, glass, BangGoesTheTheory
Ideas for use in class
  • Clip 44 from the Bang Goes the Theory teachers pack. To download the pdf please go to bbc.co.uk/schools/teachers/bang/ Stimulus material in investigating microwaves and the electromagnetic spectrum.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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