States of Matter
Which state of matter has definite shape, definite volume, and the particles are packed close together?
Solid
The substance that takes up space is called ____
Matter
What do you use to measure MASS?
Scale or balance
In which change does matter change size, shape, or form?
Physical Changes
The BOILING POINT of a liquid is defined as
a) the temperature at which it melts
b) the temperature at which it becomes a solid
c) the temperature at which its vapor pressure equals atmospheric pressure
d) the temperature at which it freezes
Which state of matter has no definite shape (takes the shape of its container), definite volume, and the particles slide past each other
Liquids
The amount of matter in an object is called ____
Mass
What do you use to measure VOLUME?
Ruler or graduated cylinder
Chemical Change
Which of the following is true regarding physical properties?
a) they can only be observed under extreme conditions
b) they change the chemical composition of the substance
c) they can be observed without changing the substance's identity
d) they are not useful in identifying substances
Which state of matter has no definite shape, no definite volume, and the particles are far away from each other
Gas
The temperature at which a solid becomes a liquid is called ____.
Melting Point
What do you use to measure DENSITY?
scale, balance, ruler, or graduated cylinder
Burning a log and cooking a cake
Chemical Change
Which of the following is NOT considered a state of matter?
a) solid
b) liquid
c) gas
d) plasma
e) energy
e) Energy
Name ONE physical property of matter
Color, Texture, Shape, Size, Magnetism
The temperature at which a liquid becomes a solid is called a _____.
Freezing Point
If an object floats in water, it is ____ dense than the water.
More or less?
Less
Which of the following is a physical change?
a) Rusting of iron
b) Baking a cake
c) Melting ice
d) Digestion
C) Melting Ice
In which state of matter do particles have the most movement?
a) solid
b) liquid
c) gas
c) gas
The ocean is an example of WHAT state of matter?
Liquid
____ is the change from gas to liquid
Condensation
What is the formula for density?
mass divided by volume
What is the primary difference between a chemical change and a physical change?
a) chemical changes are reversible, while physical changes are not
b) chemical changes result in new substances, while physical changes do not
c) chemical changes involve only solids, while physical changes involve liquids and gases
Which phrase transition involves a substance going from a liquid to a solid?
a) melting
b) freezing
c) condensation
d) deposition
b) Freezing