Density

1
Density

• Chapter 3
• Lesson 1

2
Demo
3
Mass

• Mass is how much stuff is in something.
• Stuff is matter or atoms. We use a balance to
  find mass. Mass is measured in grams (g) or
  Kilograms (Kg)

4
Volume

• Volume is how much space an object takes up.
• You can get volume by
• Length X Width X Height
• Displacement (for irregular objects)
• Volume is measured in units such as Liters (L)
  or milliliters (mL) or cubic centimeters (cm3).

5
Density

• Objects may have same mass, but they may occupy
  different volumes (and vice versa)!
• Density is how compact something is.
• Density is a ratio.
• Density Mass/Volume

6
Density and Matter
Solid Liquid
Gas

• Density depends on
• Mass of particles
• Distance between the particles.

7
Lets revisit the demo.

• Why did one block sink and the other float even
  though they were the same size?

8
Density Mass Volume
Density
Measured in kilograms per metre cubed
(kg/m3) Also g/cm3
M
D M/V
D
V
9
And now.

• Eureka

• Mystery Cubes