Page 27 - Science Course 1 (Book 1)

SCIENCE EXPERIMENTS Mo. 1 - L3a How Do We Conduct Science
Lesson 3 Experiment?

Independent variable
the factor that you want to test. It is changed by the
investigator to observe how it affects a dependent
In this topic, you will learn the following variable.
lessons:
Dependent variable
Mo. 1 - L3a How Do We Conduct Science the factor measured or observed during an experiment.
Experiment? Constant
Mo. 1 - L3b What are Qualitative and Quantitative the factor that stays the same in the experiment.
Data?

Mo1-L3a How Do We Conduct Science DO using of IPads in class help students learn
better?
Experiment
KEY CONCEPT:
1. How do independent and dependent variables differ?

Vocabulary A-Z

Let us learn some vocabulary

Variable
any factor in an experiment that can have more than
one value.
A Control Group Experimental Group
Group is exposed to Group is exposed to
normal conditions special conditions
B
Experimental group
C used to study how a change in the independent
variable changes the dependent variable
Scientific Variable Mnemonic Device / Sound
Controlled Variable Controlled variable stay Control group
constant contains the same factors as the experimental group,
Independent Variable I, the scientist, only change but the independent variable is not changed.
this
Dependent Variable The Dependent variable is
you Data Let’s Begin

Designing a Controlled Experiment

During the past few decades, scientists have
explored using protists to produce biodiesel fuel.
Protists are a group of microscopic
organisms that usually live in water or
moist environments.

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