ACT Science Prep Exam

Front

What is extrapolation?

Back

The process of using a set of known data points on a graph to predict where an unknown data point outside of that range would lie.

Front

What is an acid?

Back

A substance that increases the hydrogen ion concentration of a solution.

Front

What is a dependent variable?

Back

The observed variable in an experiment whose changes are determined by the presence or degree of one or more independent variables.

Front

What is the x-axis in a graph?

Back

The horizontal axis, often representing independent variables or categories.

Front

What is interpolation?

Back

The process of estimating unknown values that fall within the range of known data points.

Front

What is a base?

Back

A substance that decreases the hydrogen ion concentration of a solution.

Front

What is correlation?

Back

A statistical measure that describes the extent to which two variables change together.

Front

What is causation?

Back

The relationship between cause and effect, indicating that one event is the result of the occurrence of another event.

Front

What does pH measure?

Back

The acidity or basicity of a solution, on a scale from 0 to 14.

Front

What is the purpose of a control variable?

Back

To keep certain variables constant in an experiment to ensure that the results are due to the independent variable.