Biology

21 June, 01:32

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 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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