Juan measured the temperature of salt water. He then added 273 to the measured value. Which conversion is Juan most likely doing?

Deegrees celsius to Kelvins

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

Compare and contrast physical changes with chemical changes.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled