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DIY Science Projects

How to use ? - A rainbow in your room

  • Step 1

    Cut out cardboard partas to match your bedroom window.

     

    In the lower part of a cardboard, cut a slot about 4 cm high and 1 cm wide.

     

    Darken the room by fixing the cardboard on the window with adhesive tape (if there is another window in the room, close its blind or shutters).



  • Step 2

    Fill the freezer bag halfway with water and close it tightly.

     

    Tape the bag so that the water surface is at the bottom of the slot, but not below.



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