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?