1. (plus, a little review on density)

2.  Buoyancy is an upward force acting on an object
placed in a fluid.
 (don’t worry about this, we will learn more about
it when we get to forces in the physics unit)

3.  When an object is immersed in water, it feels
lighter. In a cylinder filled with water, the action
of inserting a mass in the liquid causes it to
displace upward.

4.  In 212 B.C., the Greek scientist Archimedes
discovered the following principle: “The buoyant
force acting on an object is equal to the mass of
the displaced fluid.”This became known as:
Archimede's principle.

6.  What are the units used for mass?
 What are the units used for the volume of a fluid?
(how can you help yourself remember this?)
 What are the units used for the volume of a solid?
(how can you help yourself remember this?)
 What are the units used for the density of a solid?
 What are the units used for the density of a liquid?

7.  Volume = 10ml, Mass= 5g
 Mass= 25g, Volume= 5ml
 Volume= 15, Density= 2g/cm3
 Density= 25g/ml, Mass= 50g
 Mass= 100g, Volume= 25cm3
 Volume = 40ml, Mass= 10g

8.  How do we set up a graph for density?
 Let’s do one together!

9. Mass Volume
5 grams 10 ml
10 grams 20 ml
15 grams 30 ml
20 grams 40 ml
25 grams 50 ml
30 grams 60 ml
35 grams 70 ml
Cleaning Fluid “X”
What is the density
Of cleaning fluid X?