The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of
increasing density – air, exhaust
from chimneys, honey, water,
chalk, cotton and iron.

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Why is retrograde motion an apparent motion