Forces and Motion
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Steel Springs
From £4.49
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Single Pulley Block
£4.89
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Slinky
£5.69
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Balloons
£22.99
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Rokit Water Rocket
£22.99
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Friction Ramp
£78.99
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Macro Forces Kit
£195.59
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Sink or Float Activity Set
£29.39
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Spring Balances
£23.99