Experimental Design 2

Match the following

• dependent variable

• factors that can affect the result of an experiment

• independent variable

• the result of changing the Independent Variable (what you are testing) The "THEN...."

• variable

• the ONE variable that is being tested in the experiment

  The "IF...."

A controlled experiment changes ______ variable(s) at a time.

• many

• only one

• two

• every

Constants are variables that are kept the (a)   in every experiment.

The group that has the independent variable

• experimental group

• control group

The group that lacks, or does not have, the independent variable and is used for comparison

• experimental group

• control group

How many independent variables should be tested at once?

Mathematical Equivalence

OFF

Tags

NGSS.MS-ETS1-4

Recorded observations are known as (a)   .

Match the following

• Quantitative

• information, or data, that uses the five senses and adjectives

• Inference

• The ground is wet so it must be raining outside.

• Qualitative

• information, or data, that uses measurements and is has a Number AND a unit

Tags

NGSS.MS-LS1-8

Observable events in nature

• inferences

• hypothesis

• phenomena

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Organize these options into the right categories

Groups:

(a) Control group

,

(b) Experimental group

• group where there is only one change (the independent variable)

• group that stays the same with no change in the variables

• used for comparison