When water waves approach an obstacle such as the supports holding up a pier, they will bend around the supports. this wave phenomenon is called
a. reflection.
b. refraction.
c. diffraction.
d. polarization.

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Sound is a disturbance that travels through a medium as a