What color is the dress?

hi, i am having trouble understanding what color the dress is in science.

some kids in my class say its blue and black, but i think its white and gold!
also, it probably is blue, black, gold, and white. or maybe even blue and gold or black and white, blue and white or gold and black.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance