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Phase Changes Review and Labs

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
2.

The melting point of the sample is

a)

-60 ºC

b)

-100 ºC

c)

60 ºC

d)

100 ºC

3.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
4.
At what temperature does water change from a liquid to a gas?
a)
0˚C freezing point
b)
100˚C boiling point
c)
100˚C melting point
d)
0˚C melting point
5.
When does condensation happen?
a)
solid to liquid
b)
liquid to gas
c)
gas to liquid
d)
solid to gas
6.

Easily compressed

a)

Solid

b)

Liquid

c)

Gas

7.

Does not flow easily

a)

solid

b)

liquid

c)

gas

8.

The temperature and phase can change at the same time

a)

True

b)

False

9.

This heat curve shows

a)

a sample decreasing in temperature

b)

a sample increasing in temperature

c)

a phase change

d)

more than one of the above

10.

In this heat curve

a)

water would be warming up

b)

water would be losing energy

c)

water is gaining energy

d)

water is changing phase

11.

Which heat curve would be an example of rain falling to the ground and then freezing

a)
b)
c)
d)
12.

Melting ice would have a change in

a)

thermal energy

b)

temperature

c)

phase energy

13.

The heat curve has

a)

1 section

b)

2 sections

c)

3 sections

d)

4 sections

14.

Which glass contains a suspension?

a)

Glass 1

b)

Glass 2

15.

The substance in which a solute is dissolved is a?

a)

solution

b)

solvent

c)

alloy

d)

mixture

16.
If I dissolve sugar in water, what is the solute?
a)
Water
b)
Hydrogen
c)
Sugar
d)
Carbon
17.

In a ______________, one substance is dissolved in another substance.

a)

solution

b)

suspension

c)

colloid

18.
substance that dissolves the solute
a)
solution
b)
solvent
c)
saturation
d)
so
19.
If a spoonful of sugar is mixed in a glass of water, what is the water called? 
a)
solute
b)
solution
c)
solvent
d)
element 
20.
Sugar water is a 
a)
solution
b)
suspension
c)
colloid
21.

A combination of two or more substances that can be physically separated is called a...

a)

Mixture

b)

Pure substance

c)

Compound

22.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
23.

Maple Syrup

a)

Solution

b)

Suspension

c)

Colloid

24.

Sand in Water

a)

Solution

b)

Suspension

c)

Colloid

25.

Vinegar

a)

Solution

b)

Suspension

c)

Colloid

26.

Oil in Water

a)

Solution

b)

Suspension

c)

Colloid

27.

Muddy Water

a)

Solution

b)

Suspension

c)

Colloid

28.

Sugar Water

a)

Solution

b)

Suspension

c)

Colloid

29.

Kool-Aid

a)

Solution

b)

Suspension

c)

Colloid

30.

Flour in Water

a)

Solution

b)

Suspension

c)

Colloid

31.

Distillation is used to separate ______.

a)

a liquid from its solution.

b)

an insoluble solid from its solution.

c)

a soluble solid from its solution.

32.

What is fractional distillation?

a)

a process used to separate crude oil

b)

a process used to burn up fuels

c)

a way to make different products

d)

how oil is extracted from the ground

33.

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

a)

melting point

b)

boiling point

c)

freezing point

d)

chemical reactivity

34.
3 states of water found on earth
a)
solid, liquid & gas
b)
oceans, lakes & streams
c)
evaporation, transpiration
d)
rain, sleet & hail
35.
the change of state from a liquid to a gas
a)
water cycle
b)
evaporation
c)
precipitation
d)
condensation
36.
what is a gas
a)
matter that has no definite size or shape
b)
to find amount or size of something 
37.
what is a liquid 
a)
matter that has a definite size but no definite shape
b)
matter that has no definite size or shape
38.
what is a solid
a)
matter that has no definite size or shape
b)
matter that has a definite size and shape
39.

Which separation technique is used to obtain salt from seawater?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

40.

What is the name of this separation technique?

a)

distillation

b)

filtration

c)

evaporation

d)

chromatography

41.
Which one of the following is the name for separation technique in the picture below
a)
distillation
b)
dissolving
c)
evaporation
d)
decanting
42.

No matter what you do, sand will not dissolve in water, because sand is _________.

a)

dissolved

b)

soluble

c)

insoluble

d)

aqueous

43.
What Is Matter?
a)
Anything That has weight and takes up space.
b)
Anything that you can see or taste.
c)
What you can touch.
d)
you and go throught this.
44.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
45.
The opposite phase of melting is 
a)
freezing 
b)
sublimation
c)
condensation 
d)
deposition 
46.
Melting
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
gas to liquid
47.
Freezing
a)
Solid to gas
b)
Liquid to solid
c)
Gas to solid
d)
Liquid to gas
48.
Boiling
a)
liquid to gas
b)
gas to solid
c)
gas to liquid
d)
solid to liquid
49.
Which state of matter has tightly packed molecules?
a)
solid
b)
liquid
c)
gas
50.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape

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