List 4 physical properties of each of the following:
a) a piece of paper
b) 500g of butter
c) a glass of milk
d) a candle

A piece of paper is thin, slighlty smooth, can be white and smells woody. 500 g of butter has a density of  0.911 g/ml and has a volume thus of 548.85 ml. Butter has a color yellow and smells fatty. A glass of milk has a white color, sour smell and taste and the milk occupies the volume of glass. Candle is waxy, can be long or short, can have colors of different varieties and is cylindrical.