1. why do you wear those gowns.2. are your teeth cleaner than normal during program.3.why do practice you on each other.4. do you take any of the safety practice from school to the field like in school wearing safety glasses and mask to just mask and gloves.
Reflection is when an object causes light rays to be reflected back Refraction occurs when waves pass into a dense/less dense material and are bended either towards or away from the normal Defraction occurs when waves pass over a hill or inbetween two islands (sea waves). Eg when a radio wave passes a hill it is defracted into the valley Blue light waves refract best Red light waves defract best
