Question

1.15. arianna and her classmates take water samples from the same nearby pond. then they will take measurements of the water temperature. besides using the same pond, what other variables should the students control? (sc.5.n.1.1) a same measuring tool and same volume of water b same volume of water and same temperature c same temperature and same measuring tool d no other variables need to be controlled correct answer: a

Explanation:

To get accurate and comparable water - temperature measurements, using the same measuring tool ensures consistency in measurement accuracy. Controlling the volume of water is important as different volumes can have different heat - holding capacities and may affect the measured temperature. Temperature is the variable being measured and cannot be controlled in advance.

Answer:

A. same measuring tool and same volume of water