constant - also known as the controlled variable, any factor that is kept the same during an experiment.
hypothesis - a tentative explanation or prediction that can be tested by further investigation.
manipulated variable - also know as the independent variable, the one factor that changes within an experimental group.
meniscus - the curved surface at the top of the liquid in a tube.
model - a physical, conceptual, or mathematical representation of a real phenomenon whose purpose is to explain and predict what happens in real life.
observation - any information gathered using any of your five senses or lab instruments.
qualitative data - measurements that do not include numbers.
quantitative data - measurements that include numbers.
replication - data collected by different teams from samples gathered at the same location.
responding variable - also known as the dependent variable, the variable that is being measured as a result of the experiment.
significant figures - a term that represents the precision of a measurement.