Baking soda and vinegar foam, glue and borax putty and red cabbage pH indicator are all excellent reactions to create with household chemicals. They are also safe enough for children to explore.Know More
Baking soda, a base, and vinegar, an acid, fizz on contact with one another, producing carbon dioxide and water. The addition of liquid soap to the reaction traps the gas bubbles and forms foam.
White glue and borax react to form a malleable, putty-like material. White glue contains long chains of molecules, or polymers, of polyvinyl acetate. When mixed, the borate ions from the borax begin replacing acetate groups in the glue, forming links between the polymers to create a three dimensional structure. The result is soft solid that holds its shape for a short time.
The juice of red cabbage provides an excellent pH indicator for determining the presence of acids and bases. Boiling red cabbage in water for approximately 10 minutes yields a purple juice, the exact color of which depends upon the pH of the water. Acids such as vinegar or lemon juice cause the cabbage juice to turn a reddish color. Bases such as baking soda or ammonia cause shades of blue through green to form.Learn more about Solutions & Mixtures
Synergistic reactions, also called synergistic effects, are a type of chemical reaction where the combination of chemicals produces effects stronger than the chemicals would ever produce alone. Synergistic reactions essentially magnify the power and potency of chemicals. These reactions may be dangerous, particularly when they involve potentially toxic substances such as alcohol.Full Answer >
Gelling agents are chemicals that, when added to oil, solidify the oil to create a rubber-like substance. Gelling agents are used to contain oil spills, as the rubberized material is easier to separate from water than oil. They can also be used for ground spills.Full Answer >
According to About.com, a variety of experiments involving chemical reactions can be demonstrated in a laboratory, including a thermite and ice reaction, the Briggs-Rauscher oscillating clock, the dancing gummy bear reaction and others. Many of these entertaining experiments use common substances such as ice, sugar and potassium chlorate, an ingredient in bleach.Full Answer >
Saline solutions are sterile solutions of salt and water that are easy to create. To make a saline solution, place 1 cup of water and 1/2 teaspoon of table salt into a sauce pot. Boil the water for 15 minutes, and allow it to cool completely before storing the solution in a sterile jar.Full Answer >