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Tuesday, 29 May 2018

Bottle rockets

2-liter soft drink bottle (1 per team) Styrofoam food trays Poster Board, cardboard Masking tape Low-temperature glue guns and glue 1- to 2-inch piece of 1/2” PVC pipe 4X4X1-inch board (per team) and small screw and washer 4 ounces of clay Eye protection Plastic grocery sacks or thin fabric scraps String Sandpaper or emery boards Art supplies Water rocket launcher (see page 109) Bicycle pump or small compressor.


Bubbles will continue to form on the porous surface and the process will repeat, creating a nice foamy result. In addition to that, the gum arabic / gelatin ingredients of the Mentos, combined with the potassium benzoate, sugar or (potentially)aspartame, in Diet sodas, also help in this process.

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