Understanding Data and Experiments

What is data?

• A set of numbers only

• Any collection of facts, figures, or information

• Only information gathered from surveys

• A type of research paper

What is quantitative data?

• Data that is measured in terms of numbers

• Data that describes qualities or characteristics

• Data collected through interviews

• Data that is always subjective

Tags

NGSS.MS-PS3-1

What is qualitative data?

• Data that involves measurements and quantities

• Data that describes qualities, characteristics, or descriptions

• Data used in graphs only

• Data in numerical form only

What is an independent variable?

• The variable that is measured in an experiment

• The variable that is changed or manipulated

• The variable that is kept constant

• The final result of the experiment

Tags

NGSS.MS-PS2-2

What is a dependent variable?

• The variable that is kept constant

• The variable that is measured in an experiment

• The variable that causes the changes in an experiment

• The variable that does not change

Which axis represents the independent variable on a graph?

• X-axis

• Y-axis

• Both axes

• Z-axis

Tags

NGSS.MS-PS3-1

Which axis represents the dependent variable on a graph?

• X-axis

• Y-axis

• Both axes

• Z-axis

What does it mean to interpolate data?

• To predict future values outside of the given data range

• To use given data to make estimates within the range

• To ignore the data

• To conduct an experiment

What does it mean to extrapolate data?

• To estimate data outside of the given range

• To collect data from surveys

• To ignore the data

• To graph the data

What is a controlled experiment?

• An experiment where no variables are changed

• An experiment where the independent variable is controlled and only one factor is changed

• An experiment with no conclusions

• An experiment with multiple hypotheses tested at once