Matter is anything that has mass and takes up space. Mass is the amount of matter in an object, while volume is the amount of space something occupies. Density is the amount of mass per unit volume and can be used to determine if something will float, with objects less dense than water floating and those with equal or greater density sinking.

1. Holt: Chapter 2, Section 2
Fusion: Unit 2, Lesson 2

2.  What is matter?
 Anything that has mass and takes up space
 What is mass?
 The amount of matter in an object
 What is volume?
 The amount of space something occupies

3.  The amount of matter in a given volume (mass/volume)
 Derived quantity
 Measured in g/mL or kg/L (liquids) and g/cm3 or kg/m3
(solids)

5. 퐷 =
푚
푉
 m = mass
 V = volume

6.  1 g/cm3
How do you know if something will float?