mavii

Respiration is the chemical change that takes place inside living ... look out for the different household items which can be used for exothermic and endothermic reactions. A Bunsen burner flame ...

Students explore the concept that chemical reactions involve the breaking ... form a precipitate, and cause a color change. Students also explore endothermic and exothermic reactions and do an engineering activity to design a device using an exothermic ...

crystallization of sodium acetate (an exothermic process) is triggered by the clicker, which gives the sodium acetate a nucleation point. Cold packs are presumably ammonium salts (judging by the stated contents). The temperature change is apparently the ...

Fireworks, explosives and fuels, on the other hand, all involve very fast and extremely exothermic chemical reactions. The first 'reaction' that we tried for our hand warmer involved dissolving ...

Iron oxide, aluminum, and a catalyst are placed in a flowerpot. The reaction is extremely exothermic resulting in molten iron and aluminum dripping into sand below the flowerpot. The demonstration shown in this video is very dangerous. Do not attempt to ...

Igniting a mixture of Fe2O3 and Al with a magnesium ribbon fuse produces molten iron and aluminum oxide in an impressive exothermic reaction. Pick the beverage can up to show the students. Place the can under the drainage hole in the flower pots.