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Matter and its Interactions - Unit Test #2 Review

Total questions: 78

Worksheet time: 55mins

Name
Class
Date
1.
Can be found on the periodic table
a)
Element
b)
Compound
c)
MIxture
2.
What is krypton?
a)
element
b)
compound
c)
mixture
3.
What is sugar?
a)
element
b)
compound
c)
mixture
4.
When two or more elements chemically combine
a)
element
b)
compound
c)
mixture
d)
solution
5.
Salt has a chemical formula of NaCl.  Salt is a...
a)
Compound
b)
Element
c)
Mixture
d)
None of the Above
6.
What cannot be broken down into other substances?
a)
Compound
b)
Mixture
c)
Solids
d)
Element
7.

What is made up of two or more elements that are chemically combined?

a)

Element

b)

Mixture

c)

Compound

d)

Solids

8.
How many elements are represented in the compound?
Na2CO3
a)
1
b)
2
c)
3
d)
4
9.
A combination of substances that are not chemically combined is called a(n)____________. 
a)
mixture
b)
compound
c)
physical
10.
Mixtures are separated through ___________changes.
a)
mixture
b)
compound
c)
physical
11.
An element is made up of only one kind of _____.
a)
isotope
b)
plastic
c)
atom
d)
metal
12.
Which of these is a mixture?
a)
Uncooked chocolate chips and cookie dough blended together with a spoon.
b)
Distilled water
c)
A nugget of gold
d)
A molecule of Oxygen
13.
The smallest unit of a compound that still has the properties of that compound is?
a)
an atom
b)
a molecule
c)
a mixture
d)
a substance
14.
Two or more elements chemically combined:
a)
an atom
b)
a compound
c)
a mixture
d)
a pure substance
15.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
16.
 mixture that does NOT appear to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
17.

What happens when elements combine chemically?

a)

All elements retain their original properties

b)

New properties are formed

c)

Only metals retain their original properties

d)

New elements are formed

18.

Which of the following is a chemical formula?

a)

Ca

b)

Cl (lower case "L")

c)

CaCl2

d)

C

19.
Element or compound?
H2O
a)
element
b)
compound
20.

Water and rubbing alcohol may be separated from each other through using...

a)

a filter funnel

b)

a sieve

c)

an evaporating basin

d)

a distillation

21.

Two or more substances mingled together, but not chemically combined are known as a __________

a)

element

b)

compound

c)

distillate

d)

mixture

22.

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

23.

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

24.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
25.
Making a mixture results in ___________________ only.
a)
chemical reactions
b)
separate parts
c)
physical changes
d)
two subtances
26.

Which of the following terms identifies the change from a liquid to gas?

a)

Evaporation

b)

Condensation

c)

Deposition

d)

Sublimation

27.

Which of the following terms identifies the change from a liquid to solid?

a)

Melting

b)

Condensation

c)

Evaporation

d)

Freezing

28.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
29.
No Definite Shape and No Definite Volume
a)
Gas
b)
Liquid
c)
Solid
30.
Definite shape and a definite volume.
a)
Gas
b)
Liquid
c)
Solid
31.
No definite shape, but has a definite volume
a)
Gas
b)
Liquid
c)
Solid
32.
Phase change from a solid to a gas.
a)
sublimation
b)
deposition
c)
condensation
d)
evaporation
33.
Phase change from a solid to a liquid.
a)
melting
b)
sublimation
c)
boiling
d)
condensation
34.

Phase change from a liquid to a gas

a)

evaporation

b)

freezing

c)

sublimation

d)

melting

35.

What is the boiling point of water (in degrees Celsius)

a)

0

b)

32

c)

100

d)

212

36.

What is the freezing point of water (in degrees Celsius)

a)

0

b)

32

c)

100

d)

212

37.

What is the melting point of water (in degrees Celsius)

a)

0

b)

32

c)

100

d)

212

38.

Between what two letters is the substance completely solid?

a)

Between D & E

b)

Between E & F

c)

Between A & B

d)

Between B & C

e)

Between C & D

39.

Between what two letters is the substance melting?

a)

Between D & E

b)

Between E & F

c)

Between A & B

d)

Between B & C

e)

Between C & D

40.

Between what two letters is the substance completely liquid?

a)

Between D & E

b)

Between E & F

c)

Between A & B

d)

Between B & C

e)

Between C & D

41.

Between what two letters is the substance boiling/vaporizing?

a)

Between E & F

b)

Between D & E

c)

Between A & B

d)

Between B & C

e)

Between C & D

42.

Between what two letters is the substance completely a gas?

a)

Between E & F

b)

Between D & E

c)

Between A & B

d)

Between B & C

e)

Between C & D

43.

Every substance has a different melting point and boiling point

a)

True

b)

False

44.

Every substance melts at 0oC and boils at 100oC

a)

True

b)

False

45.

Why doesn't the temperature increase when a substance is going through a phase change?

a)

Actually, It does

b)

Because phase changes are endothermic

c)

The heat is turned off at these points

d)

All of the energy is used to break bonds when heat is being added and when heat is being removed, the bonds are reforming

46.

Which of the following best describes exothermic reactions?

a)

They never release heat.

b)

They always release heat.

c)

They never occur spontaneously.

d)

They always occur spontaneously.

47.

Which change of phase is exothermic?

a)

solid to liquid

b)

gas to liquid

c)

solid to gas

d)

liquid to gas

48.

Which change of phase is endothermic?

a)

liquid to solid

b)

liquid to gas

c)

gas to solid

d)

gas to liquid

49.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
50.
a)
Element
b)
Compound
c)
Mixture of compound and element
d)
Mixture of elements
51.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
52.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
53.

An example of a synthetic material is _____________.

a)

plastic

b)

organic cotton

c)

coal

d)

silk

54.

A synthetic material is a product made __________ and changed ________________.

a)

by nature, chemically

b)

by nature, only physically

c)

by man, chemically

d)

by man, only physically

55.

Which of the following is an example of a natural material?

a)

plastic

b)

nylon

c)

kevlar

d)

cotton

56.

Which of the following would be considered a natural resource?

a)

rock

b)

steel

c)

glass

d)

concrete

57.

Why does society create synthetic materials?

a)

Needs

b)

Value

c)

Desires

d)

All of the above

58.
What are some advantages of synthetic materials?
a)
Cheaper to manufacture 
b)
Stronger than similar products made from natural material
c)
Often better quality 
d)
All of the above
59.

What is a synthetic material?

a)

Any material that is man made

b)

Any material that is only made from natural resources

c)

Any material that is made of recycled materials

d)

Any material that is found in nature.

60.
What are some advantages of synthetic materials?
a)
Cheaper to manufacture 
b)
Stronger than similar products made from natural material
c)
Often better quality 
d)
All of the above
61.
What is the difference between a natural and synthetic material?
a)
Natural material is made from chemicals and synthetic is made from nature
b)
Natural material is made directly from nature and synthetic material is made from chemicals
c)
Natural material is made from petroleum and synthetic material is made from wool
d)
Natural material is made from trees and synthetic materials are made from plastics
62.

What is a synthetic material?

a)

Any material that is man made

b)

Any material that is only made from natural resources

c)

Any material that is made of recycled materials

d)

Any material that is found in nature.

63.
What word means "manufactured in a lab or chemical plant"?
a)
macromolecular
b)
alloy
c)
synthetic
d)
ceramic
64.

Which word means the same thing as synthetic?

a)

real

b)

artificial

c)

natural

d)

true

65.

Which of the following is an example of a natural material?

a)

plastic

b)

nylon

c)

syngas

d)

cotton

66.

Which is NOT a benefit of synthetic products?

a)

pests don't like it as much

b)

more biodegradable

c)

more durable

d)

stronger

67.

True or False: Synthetic materials are never made from natural resources

a)

True

b)

False

68.

Which changes MUST happen for elements to become a compound?

a)

elements are heated

b)

a gas becomes a liquid

c)

elements dissolve in water

d)

chemical bonds form between atoms.

69.

Water (H2O), is not found on the periodic table because water is a...

a)

atom

b)

liquid

c)

mixture

d)

compound

70.

When the elements copper (Cu) and oxygen (O) chemically combine, they form...

a)

an ion

b)

a gas

c)

a compound

d)

a mixture

71.

This image is a model of...

a)

an element

b)

a compound

c)

a homogenous mixture

d)

a heterogeneous mixture

72.

This picture is a model of a...

a)

element

b)

compound

c)

homogeneous mixture

d)

heterogeneous mixture

73.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
74.
What is H2SO4 
 made up of?
a)
2 hydrogen, 1 sulfur, 4 oxygen
b)
1 hydrogen, 2 sulfur, 4 oxygen
c)
2 hydrogen & 4 sodium
d)
1 hydrogen & 6 sodium
75.

Which is a form of heterogeneous mixture?

a)

gravel and water

b)

sugar and water

c)

powdered milk and water

d)

powdered coffee and water

76.

When sand and pebbles are mixed, they are best separated through the use of _________.

a)

decantation

b)

filtration

c)

manual separation

d)

magnetic separation

77.

Which of the following mixtures may be separated using filtration?

a)

oil and water

b)

salt from salt water

c)

sand and iron fillings

d)

coconut milk from grated coconut fruit

78.

Salt is dissolved in water. How can you separate the salt from water?

a)

add more salt

b)

filter the water

c)

dispose the water

d)

boil the water and let it evaporate

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