Experimental Design, Scientific Method and CER

A scientific explanation for a set of observations that can be tested with an experiment

• Theory

• Hypothesis

• Conclusion

• Data

Tags

NGSS.MS-LS1-5

Noticing or describing events in a careful, orderly way (using some or all of the 5 senses)

• Theory

• Hypothesis

• Inference

• Observations

Tags

NGSS.5-PS1-3

The factor that is tested during an experiment

• Independent Variable

• Constant

• Dependent Variable

• Control Group

Tags

NGSS.MS-PS2-2

The factor that is observed or measured during an experiment; the data collected

• Independent Variable

• Constant

• Dependent Variable

• Control Group

Conditions that are the SAME between the control and experimental groups

• Independent Variable

• Constants

• Dependent Variable

• Data

The group which does not get the independent variable; "normal" conditions, used as a means of comparison

• Control Group

• Dependent Variable

• Experimental Group

• Constant

Numbers obtained by counting or measuring

• Qualitative data (Categorical)

• Descriptive data

• Quantitative data

• Observations

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Descriptive information; characteristics that cannot be expressed as a number

• Qualitative data (Categorical)

• Measurements

• Quantitative data

• Variables

A series of steps scientists used to investigate a question

• Procedure

• Observation

• Experiment

• Scientific Method

Does temperature affect heart rate in daphnia? Name the independent variable.

• Temperature

• Type of organism

• Heart Rate

• Number of daphnia in each group