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What you need Water beads Tweezer/Spoon* Countdown Timer* Large container* Cups** *Not provided **Items can be found in the colour mixing challenge Step by step (Expand the water beads) 1....

What you need Prism Torch* (you can use the torchlight function in mobile phones) *Not provided Activity 1 Place your prism on the window ledge. Adjust position of the prism...