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Ask a friend to hide some steel paperclips in a bowl of sand, ...
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The pin leaves the slot in the cross after the cross has made ...
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Playing your own home-made guitar.
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Seeing how a camera focuses an image.
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Girl blowing a home-made hosepipe horn.
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Ask an adult to saw through most of the base of the plastic bo...
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Glass dish, sand, adhesive tape, saw, pen, modelling clay, mag...
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Bend the base of the plastic bottle downwards to form the head...
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Wind thinly insulated wire 200 times around the magnet, leavin...
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When the buzzer and coil have been connected to the breadboard...
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Ask a friend to hide some steel paperclips in a bowl of sand, ...
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Jug of water, plastic beaker, flexible plastic tube, drill, ad...
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Drill a hole in the side of the funnel.
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Push the other end of the wire through the funnel into the nar...
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Push the cork on to the wire until it almost fits into the end...
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Make a 90 degree bend in the wire at the mark and cut of the e...
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Cut a slit from the edge to the centre of one card disc. Push ...
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Stick double-sided tape on top of the discs. Cut the neck and ...
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Drill two small holes, 5 cm apart near the bottom of the plast...
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Knot the neck of a small balloon. Cut off and discard half the...
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