Page 30 - Science Course 1 (Book 1)

Mo. 1 - L3a How Do We Conduct Science Experiment?

SUMMARY What are Qualitative and
How Do We Conduct Science Experiments? Mo1-L3b Quantitative Data?
The independent variable is a factor in an
experiment that is manipulated or changed KEY CONCEPT:
by the investigator to observe how it affects 1. How are quantitative and qualitative data different?
a dependent variable. The dependent
variable is the factor measured or observed Vocabulary A-Z
during an experiment.. Let us learn some vocabulary
Scientific Variable Mnemonic Device / Sound
Controlled Variable Controlled variable stay
constant
Independent Variable I, the scientist, only change Qualitative data
this use words to describe
Dependent Variable The Dependent variable is what is observed.
you Data
Example: There are
purple, black,
SUMMARY brown and orange
How Do We Conduct Science Experiments? cat.

An experimental group is the group in an
experiment that receives the variable being Quantitative data
tested. The experimental group is compared use numbers to describe
to a control group, which does not receive what is observed.
the test variable. In this way, experimental
groups are used to find answers in an Example: There are
experiment. 4 cats

Let’s Begin

Asking Questions
Investigators reviewed the modifications made to the
bridge since it opened.
Investigators recorded qualitative and quantitative data.

Qualitative data use words to describe
what is observed.

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