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Unit 1 Quiz

Total questions: 40

Worksheet time: 29mins

Name
Class
Date
1.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
2.
How is a gas defined?
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
3.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
4.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
5.
Making a mixture results in ___________________ only.
a)
chemical reactions
b)
separate parts
c)
physical changes
d)
two subtances
6.
The air around was is  a mixture of gases.
a)
True
b)
False
7.
What does it mean if a mixture is heterogeneous?
a)
you can see the different parts
b)
cannot tell one part from another
c)
very well blended
d)
made of elements
8.
What does it mean if a mixture is homogeneous?
a)
you can see the different parts
b)
cannot tell one part from another
c)
chunks of particles
d)
made of elements
9.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
10.
What type of mixture is this?
a)
heterogeneous 
b)
homogeneous
11.

To separate the sugar and lemonade what method should you use?

a)

filtration

b)

sorting

c)

magnet

d)

evaporation

12.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
13.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
14.
What is made up two or more elements that are chemically combined?
a)
Element
b)
Mixture
c)
Compound
d)
Solids
15.
Air is a compound.
a)
True
b)
False
16.
Can compounds be found in the periodic table?
a)
Yes
b)
No
17.

Name the separation technique shown in the diagram.

a)

evaporation

b)

distillation

c)

filtration

18.

Dyes in water soluble markers may be separated by means of..

a)

crystallization

b)

sublimation

c)

chromatography

d)

sedimentation

19.
Water and alcohol are easily separated by distillation because of their
a)
 different melting points
b)
different colours
c)
different densities
d)
different boiling points
20.
To separate a mixture of soil and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
21.
To separate a mixture of salt and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
22.
Look at the apparatus setup. It cannot be used to separate which of the following mixtures? 
a)
Marble chips from oil 
b)
Alcohol and water
c)
Chalk from sugar solution
d)
Sand and sea water
23.
Can you separate salt from water using filtration?
a)
yes
b)
no
24.

In a coffee machine, the ground coffee is separated from the coffee solution by using..

a)

sand paper

b)

filter paper

c)

toilet paper

d)

tissue paper

25.
The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as
a)
decanting
b)
 evaporation
c)
loading
d)
chromatography
26.

This technique is based on the differences of the boiling point of the substance in the mixture.

a)

decantation

b)

distillation

c)

filtration

d)

chromatography

27.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
28.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
29.
When you break a cracker into pieces it is a 
a)
Chemical change
b)
Physical change
c)
Chemical Weathering
d)
Physical Weathering
30.
Is melting iron a physical or chemical change?
a)
Physical
b)
Chemical
31.
When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?
a)
Physical
b)
Chemical
32.
water freezes at 0⁰C
a)
physical change
b)
chemical change
33.
fireworks explode
a)
physical change
b)
chemical change
34.

Chemical or Physical:

The words "blue", "large", and "soft" all describe __________ properties.

a)

Chemical

b)

Physical

35.

Chemical or Physical:

Rusting or tarnishing describes matter undergoing a __________ change with gases in the air.

a)

Chemical

b)

Physical

36.

Reactivity (bubbling, fizzing) is a --- property.

a)

Chemical

b)

Physical

37.

Which of the following indicate that a chemical reaction has occurred?

a)

The formation of gas bubbles

b)

An odor

c)

a change in color

d)

all of these indicate a chemical reaction

38.
What is a  pure substance made of two or more elements chemically combined in a set ratio. Ex: CO2 has a set ratio of 1:2, meaning for every one carbon atom there are two oxygen atoms.
a)
element
b)
compound
c)
mixture
d)
salad
39.
What is a pure substance that cannot be broken down into any other substance by physical or chemical means. Ex: Gold, Silver, Oxygen, & Nitrogen
a)
element
b)
compound
c)
mixture
d)
salad
40.
The Law of Conservation of Matter says
a)
Matter can be created, but not destroyed
b)
matter can be destroyed, but not created
c)
matter cannot be created or destroyed

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