La plate-forme collaborative de bricolages scientifiques et pédagogiques


  • Etape 2

    Paint the buiscuit box in black, including the bottom (wait until dry).


    Secure the box with 4 plastic ties on the central tube (2 fixed end-to-end to extend the length).


    Place the box near the center of the tube, where the sun's rays should be concentrated.

    Taille originale

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