Unit 3 Lesson 3Unit 3 Lesson 3
Density
Remember Matter?
0Matter – anything that has mass and takes up space
Physical Properties
0Characteristics of materials0Color, shape, texture0VOLUME and DENSITY
Volume
0Amount of space that matter takes up
Density
0 If you know mass and volume of an object, you can calculate density
0Amount of mass in a defined amount of space
Compare Density of 2 Blocks
0Wood and aluminum0Same size
0 Take up same amount of space0 Same volume
0Different materials0 Different masses
Compare Density of 2 Blocks
0Heavier block more dense0Greater mass in the same volume
Compare Density of 2 Blocks
0Place blocks in water to compare densities
0Sink or Float0 If it sinks its LESS DENSE0 If it floats its MORE DENSE
Compare Density of 2 Blocks
0Wood FLOATS0Aluminum SINKS0Wood is LESS DENSE0Aluminum is MORE DENSE
Liquid Density Column
0Pour liquids that have different densities
0Form liquid layers
Highest density liquid on bottom
Lowest density liquid on top
Density
Finding Density
0Need mass and volume0Mass
0 Balance scale
Finding Density
0Volume0 Ruler0 Length x Width x Height0 cm3
Finding Density
0Volume0 Graduated Cylinder
Density Problem
0Paperclip has a mass of 9g and a volume of 3mL
0What is its density?
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