A constant variable, normally called a controlled variable, is the term for a variable that remains constant throughout an experiment, though other variables may change. An example is the water pressure for a faucet when measuring the amount of water released when the faucet is opened to various increments.Know More
Controlled variables are necessary in determining cause and effect through scientific experimentation. Experiments require that constants be maintained in order to monitor how changes such as increase of temperature or chemical reactions affect dependent or independent variables within the experiment. Controlled variables allow for accurate determinations to be made as long as the controlled variable remains constant.
Determining which type of soda is the most corrosive, due to the acid, is an interesting science project. This projects helps determine which soda is the most harmful to tooth enamel.Full Answer >
The substances to the right of the arrow in a chemical equation are called the products, while those on the left side of the arrow are the reactants. The reactants are the substances present before the reaction starts, and the products are what is left at the end.Full Answer >
One example of a chemical change is the rusting of iron. An additional example is the digestion of food by the body. A chemical change is an irreversible change that involves reactants and the creation of new products.Full Answer >
A responding variable is the component of an experiment that responds to change. For example, if salt is added to water to see how the pH level changes, the water is the responding variable because it is the component of the experiment that changes and reacts to the salt.Full Answer >