Unit 2 power point - Boone County Schools

Unit 2:What is Matter?
All Matter has 2 Types of Properties of
 Physical Properties and Chemical
1. Physical properties – can be observed
without changing into another substance.
 State of matter (solid, liquid, gas),
texture, color, flexibility, melting and
boiling points
2. Chemical properties – describes the ability
to change into different substance. They
cannot be observed without changing a
substance into a new material
 Able to catch fire (Flammability), ability
to react (rusting, tarnishing), nonreactivity (water does not react with air)
Measuring Matter
Matter is anything that has mass
and takes up space (volume)
We can measure mass
We can measure volume
If it can be measured then it is a
Physical Property.
Measuring Volume
Volume- measured in liter or L, mL,
and kL
or cubic cm
(cm³)and cubic m (m³)
Volume = L x W x H
Measuring Irregular Shaped Objects
Displacement – submerge object in
water in graduated cylinder.
Measure the difference water rises.
1ml of water = 1cm³
Scientist Prefer
Mass Instead of Weight
Mass – measured in grams or g, mg, and
 Use a balance to measure mass
Mass does not change even when force
of gravity changes on mass
Weight changes with force of gravity;
changes with location throughout the
 Use a scale to measure weight
Density = mass (g) / volume (cm3)
If we can measure mass and
volume then density is a Physical
Relative density states that the
least dense items will be on top and
most dense items on the bottom
Entrance Quiz Unit 2
1. Which of the following is NOT a unit of
measure for volume?
a. cm³ b. ml c. g d. liter
2. What are the 2 properties all matter
a. mass and weight
b. mass and volume
c. volume and density
d. physical and chemical
Entrance Quiz Unit 2
3. This is the amount of matter in an
a. mass b. density c. matter
d. Volume
4. Density is the:
a. Amount of space an object occupies
b. Force of gravity on an object
c. Mass in a given volume
d. Amount of mass and space object occupies