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In a ___ only one variable is changed at a time.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
In today's world, scientists form a global community. This means that ___.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
In a controlled experiment ___.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
Science deals only with the _____.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
A hypothesis must be stated in a way that makes it __________.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
Scientists often use experiments to test their ___, which are possible explanations for observations.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
A scientist who wants to study the possible side affects of a new medicine would probably ___.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
The set of skills or steps that scientists use to answer questions is the ___.
testable
natural world
include a control group that received no medicine
scientific method
scientists share their results with other scientists
hypotheses
controlled experiment
control group is compared with one or more experimental groups
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