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?

A. The time it takes for the water to boil

B. The amount of salt added to the water

C. The kind of bottles used

D. The brand of salt used

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Which accounts for an increase in the temperature of a gas that is kept a constant volume