Which of the following investigations is an experiment?
1 Constructing a model to study the water cycle
2 Measuring the height of a table using a measuring tape
3 Measuring the effect of different activities on heart rate
4 Observing two birds to find out which of the two flies higher
Answers: 1
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Which of the following investigations is an experiment?
1 Constructing a model to study the water c...
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