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light and shadows

Discussion in 'Science' started by Princessk24, Apr 22, 2012.

  1. Hello everyone i am wondering if i can get help from someone. I am teaching light and shadows this term and since the weather is not very funny for the experiments, what experiment can i do inside the building to demonstrate how shadows change position (the sun's movements).

  2. Sorry if this sounds a bit "secondary".
    Give the pupils a light (mains lamp or torch?) and a vertical marker (pencil?) with a protractor (paper version?).
    Shine light from 0, 20, 40 deg etc - mark shadow. This shows progression of the Sun from E to W (really its the Earth rotating W-E!).
    Make a cardboard(?) curve to represent the height of the Sun above the horizon (as it "goes" E-W: highest at S). Shine the torch from similar positions - see the shadow shorten at mid-day.
    If you like "grand designs", do it in the Hall with a theatrical spotlight to represent the Sun.

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