1. observation is made using one or more of the five senses.
2. An independent variable is a variable that’s changed in an experiment.
3. An explanation based on an observation is a/an .
4. There may be only one variable in an experiment.
5. observation is made using tools or measurement.
6. What’s the difference between an observation and inference?
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1. observation is made using one or more of the five senses.
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