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What do scientists do before testing a hypothesis?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Which description defines a independent variable in a scientific experiment?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
The hurricane followed a similar path but did not follow the exact path that was predicted. How does this example demonstrate a limitation of models?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Which description defines a hypothesis?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
DNA is found inside the cells of all living things. Which of the following is a reason that a scientist would want to use a model to study DNA?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Which statement describes the difference between an independent variable and a dependent variable?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Scientists can use many strategies during investigations, including fieldwork, surveys, models, and experiments. Which of these phrases best describes an experiment?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Two scientists have different ideas about a scientific concept. What might they do to resolve their differences?
any factor that is changed so that it can be tested
The dependent variable changes based on the independent variable.
Make predictions
Models cannot account for how every factor may suddenly change.
Debate their ideas
DNA is very small
a testable idea that explains an observed event
procedure with controlled conditions and test
Check it!