In an experiment following the scientific method, a constant is a variable that cannot be changed or is purposely not changed during the experiment. Some constants are purposeful and selected by the scientist to control an experiment while others are more universal and beyond a researcher's control.Know More
Any experiment conducted according to the scientific method will have constant variables and experimental variables. Experimental variables are those variables a scientist chooses to change so she may study the effects of the change. Constants are variables that are kept the same to ensure all effects being studied and measured are the result of an experimental variable.
If a researcher wanted to study the effects of temperature on the growth and development of garden snakes, the experimental variable for the experiment would be temperature. All other variables would need to remain consistent to avoid invalid data. The size of the cage, amount of light, food and many other variables would need to remain constant to ensure accurate results and a valid study. Those variables are constants. Some variables are not under a scientist's control, but are still considered to be constants. These constants are called universal constants and include gravity, the speed of light and electronic charge. Universal constants do affect experiments but will be constant through an experiment without being controlled by the scientist.Learn more about Measurements
Questions about traffic, weight loss and cleaning products can be easily answered by using the scientific method. In theory, the scientific method can be used to answer virtually any question imaginable. The scientific method is a consistent approach to acquiring knowledge that begins with a question and then uses a combination of research, testing and analysis to arrive at the answer to the question.Full Answer >
The scientific method is important because it is an evidence-based method for acquiring knowledge. Unlike intuitive, philosophical or religious methods for acquiring knowledge, the scientific method relies on empirical, repeatable tests to reveal the truth.Full Answer >
The first step of the scientific method is observation. During this step, a researcher notices something and wonders how it works or what causes it.Full Answer >
Volume is the measurement of the amount of space that a liquid, solid or gas takes up in a container. Common measurements of volume include gallons, ounces and teaspoons.Full Answer >