A scientist adds different amounts of salt to 5 bottles of water. She then measures how long it takes for the water to boil. What is the responding
variable in this experiment?
O A. The time it takes for the water to boil
O B. The amount of salt added to the water
C. The kind of bottles used
D. The brand of salt used

A. The time it takes for the water to boil

It is because salt was added into the water. So the responding variable is the time taken to boil the water.

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the bal will not change its velocity.

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