Materials used (to smoke one): - 8g K (NO3) - 6G sugar- 3g of food coloring, powder (use more colors) - 1.5 g of sodium bicarbonate - Source of heat (gas, electric furnace, etc.). - Container for mixing ingredients, resistant to high temperatures, metal (pan, vessel of metal, etc.). - A spoon (or something for. Mixed metal) - Small cardboard tube (diameter approx. 1.25 cm and 2 cm) and a switch to plastic - Lint (from fireworks, ca. 2.5 cm) - Little plastelină
Method of preparation: - Mix the following ingredients: -K (NO3), sugar, color and bicarbonated sodium - The substance is produced in a pan - Put the pan into the fire, and mix until the substance becomes omogenizează as peanut butter (be careful not to become too dark in color) - The substance is obtained with the spoon and put in the cardboard tube in the middle of his stick, until about the middle height tube, beţişorul plastic and leave it so until the mixture strengthens after strengthening to remove, carefully beţişorul - In the hole left by the switch fuse is inserted and in addition it put plastelină the cardboard tube removed, using a knife, with great care * smoke obtained is placed on a heat resistant material * light the fuse and see a spectacular game of colors and lights WARNING: during the whole experiment will wear protective equipment and heating the ingredients will not be made in cash or in any room!
Bode Bianca , Lascu Iulia , Gudea Casian
Scoala Gimnaziala "Gheorghe Lazar" Zalau, Romania