Which of these items should the class use to record their measurements as the class takes them?

Scientists can use many strategies during investigations, including fieldwork, surveys, models, and experiments. Which of these phrases best describes an experiment?

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?

Which description defines a independent variable in a scientific experiment?

Which description defines a hypothesis?

Two scientists have different ideas about a scientific concept. What might they do to resolve their differences?

A scientist who would use a map showing the location of rock formations

Which statement describes the difference between an independent variable and a dependent variable?

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?

What do scientists do before testing a hypothesis?

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