# Unit 2 power point - Boone County Schools

advertisement ```Unit 2:What is Matter?
All Matter has 2 Types of Properties of
Matter
 Physical Properties and Chemical
Properties
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)
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Measuring Matter
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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
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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
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Displacement – submerge object in
water in graduated cylinder.
Measure the difference water rises.
1ml of water = 1cm³
Scientist Prefer
Mass Instead of Weight
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Mass – measured in grams or g, mg, and
kg
 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
universe
 Use a scale to measure weight
Density
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Density = mass (g) / volume (cm3)
If we can measure mass and
volume then density is a Physical
Property
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
have?
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
object.
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
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