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CFA #1 Review

Total questions: 100

Worksheet time: 18hrs 32mins

Name
Class
Date
1.
Which statement best describes an element?
a)
made from mixture 
b)
thousands in the world
c)
pure, made of only one thing
d)
can be separated 
2.
Which of the following is a compound?
a)
Co
b)
He
c)
CO
d)
H
3.
Which best describes a compound? 
a)
found on the periodic table 
b)
made from two or more elements
c)
a pure substance 
d)
only 100 in the world 
4.
Which one can be found on the periodic table?
a)
Compound 
b)
Element
5.
How many different elements are represented in the compound?
Fe3O4
a)
2
b)
3
c)
1
d)
4
6.
The two most common elements found in the oceans are.  Remember oceans are made up of water.
a)
Sodium and Nitrogen
b)
Oxygen and Aluminum
c)
Iron and Carbon
d)
Oxygen and Hydrogen
7.

Which pie chart MOST accurately reflects the information in the table?

a)
b)
c)
d)
8.

The crust of Earth has Oxygen. What percentage does it hold?

a)

466

b)

27.7

c)

21

d)

46.6

9.
This table has two columns of different kinds of matter. Which of the following is the best label for the second column?
a)
Atoms
b)
Pure Substances
c)
Compounds
d)
Mixtures
10.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
11.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
12.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
13.
Which elements are found on the left to middle of The Periodic Table? 
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Candles
14.
Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
15.
Which elements are found on the right side of The Periodic Table?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Water
16.
Which element is a metalloid?
a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
17.

Elements in the shaded area can best be described as -

a)

Malleable

b)

Brittle

c)

Dull

d)

Insulators

18.

Elements in the shaded area can best be described as -

a)

Shiny and brittle

b)

Insulators

c)

Good conductors

19.
Look at the periodic table that is provided. Where would nonmetals be located? 
a)
to the left of the table 
b)
to the right of the table 
c)
in the zigzag line 
20.

Fill in the blank: Nonmetals have a ___________ surface, and they do not conduct heat or electricity.

a)

electricity

b)

dull

c)

changed

d)

luster

e)

metals

21.

Which element category could have the characteristic of brittle? Choose the best answer.

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Metalloid and Nonmetal

22.

All of these properties describe metals except...

a)

malleable

b)

conductors

c)

brittle

d)

shiny

23.
a)

Metal

b)

Nonmetal

c)

Metalloid

24.
a)

Metal

b)

Nonmetal

c)

Metalloid

25.
a)

Metal

b)

Nonmetal

c)

Metalloid

26.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
27.

Is melting butter for popcorn a chemical or physical change?

a)

chemical

b)

physical

28.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
29.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
30.

Change in color is a physical change.

a)

True

b)

False

31.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
32.

Rust on an iron bar is an example of chemical change.

a)

True

b)

False

33.

When you break a cracker into pieces it is a...

a)

Chemical change

b)

Physical change

34.
Digesting your food is an example of 
a)
chemical change
b)
physical change
35.

The melting of wax is an example of a

a)

chemical change

b)

physical change

36.

Cutting a log in to small pieces is a chemical change.

a)

true

b)

false

37.
Which is an example of a chemical reaction?
a)
paper cut into small pieces
b)
chocolate melting in a pan
c)
flour and sugar mixed in a bowl
d)
cookies baking in an oven
38.
What goes in A?
a)
freezing
b)
condensing
c)
melting
d)
evaporating
39.
What goes in B?
a)
freezing
b)
condensing
c)
melting
d)
evaporating
40.
What goes in C?
a)
freezing
b)
condensing
c)
melting
d)
evaporating
41.
What goes in D?
a)
freezing
b)
condensing
c)
melting
d)
evaporating
42.
Which of the following is a physical property?
a)
density of water
b)
zinc fizzes when placed in acid
c)
vinegar has a sour odor (smell)
d)
magnesium is very flammable
43.
Which of the following is a chemical property?
a)
water boils when heated
b)
the volume of a brick
c)
sodium is explosive when placed in water
d)
the flexibility of rubber
44.
Physical or Chemical change?
rain evaporates on the sidewalk
a)
Physical 
b)
Chemical
45.
Physical or Chemical change?
stepping on a Coke can
a)
Physical 
b)
Chemical
46.
Physical or Chemical change?
sodium metal is cut with a knife
a)
Physical 
b)
Chemical
47.
Physical or Chemical change?
glucose dissolves in water
a)
Physical 
b)
Chemical
48.
Physical or Chemical change?
aluminum combining with oxygen to from aluminum oxide
a)
Physical 
b)
Chemical
49.
Physical or Chemical change?
cooking an egg
a)
Physical 
b)
Chemical
50.
Physical or Chemical change?
methane burns with a blue flame
a)
Physical 
b)
Chemical
51.
Physical or Chemical change?
mixing sand and water
a)
Physical 
b)
Chemical
52.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
53.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
54.
Is mold growing on cheese a physical or chemical change?
a)
Physical 
b)
Chemical
55.
Is sharpening a pencil a physical or chemical change?
a)
Physical 
b)
Chemical
56.

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

a)

The powder DISSOLVED in the water

b)

The water turned the COLOR yellow

c)

The bag's TEMPERATURE changed

d)

The STATE OF MATTER changed

57.

Water is boiling on a stove, producing steam. What conclusion can you make about the change that is occurring?

a)

Boiling water bubbles indicate a chemical change

b)

Steam indicates a state of matter change

c)

Heat indicates a chemical change

d)

The clear color indicates a chemical change

58.

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

a)

The powder DISSOLVED in the water

b)

The water turned the COLOR yellow

c)

The bag's TEMPERATURE changed

d)

The STATE OF MATTER changed

59.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

Boiling water bubbles when heated

60.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Boiling water bubbles when heated

d)

Salt dissolves in water

61.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

62.

Water is boiling on a stove, producing steam. What conclusion can you make about the change that is occurring?

a)

Boiling water bubbles indicate a chemical change

b)

Steam indicates a state of matter change

c)

Heat indicates a chemical change

d)

The clear color indicates a chemical change

63.

Which observations prove a chemical change occurred

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

64.

Which word matches the definition "two liquids make a solid"

a)

pre-color

b)

precipitation

c)

precipitate

d)

pretest

65.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: precipitate

c)

Physical change: freezing

d)

Chemical change: rust

66.

Which of the following is true?

a)

A physical change produces a new substance

b)

A chemical change does not produce a new substance

c)

A physical change can produce a precipitate

d)

A chemical change can produce a precipitate

67.

When iron is exposed to air over a long period of time, it forms rust. This is an example of what?

a)

A new substance forming

b)

Color change: no new substance

c)

Shape change: no new substance

d)

Burning: a new substance

68.

What does malleable mean?

a)

able to be hammered or rolled into sheets

b)

will break easily

c)

able to be pulled into a wire

d)

is shiny

69.
If a material can easily be drawn into the shape of a wire, it is
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
70.
Is the following an element or compound?
a)
element
b)
compound
71.

Select the correct answer

a)

Element

b)

Compound

72.

What do all elements listed on the Periodic Table have in common?

a)

They are molecules

b)

They have more than one capital letter

c)

They have ONE capital letter

73.

Which of the following represents an element?

a)

H2O

b)

HCl

c)

NaCl

d)

Au

e)

CaCO3

74.
Are made from a combination of 2 or more elements...
a)
Molecules
b)
Pure Substances
c)
Compounds
d)
Elements
75.

This picture represents which of the following?

a)

element

b)

compound

76.

This picture represents which of the following?

a)

element

b)

compound

77.

Compounds are different than elements because compounds are ---

a)

combinations of two or more elements.

b)

not able to be broken down into parts.

c)

made from the same type of atoms.

d)

a pure substance; elements are not.

78.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
79.

1. Which of the following is a chemical compound and why?

a)

Al, because it has a chemical symbol with one element

b)

Al, because it is a chemical formula with more than one element

c)

H2O, because it has a chemical symbol with one element

d)

H2O, because it is a chemical formula with more than one element

80.

2. Which of the following examples most closely represents what it means to be an element?

a)

A gumball machine with many different colors and sizes of candy inside.

b)

A fish tank holding a large variety of fish.

c)

A salad made of lettuce, tomatoes, cucumbers, and dressing.

d)

A brick wall made from many identical bricks.

81.
A pure substance that cannot be separated into simpler substances by chemical or physical means.  
a)
Element
b)
Compound
c)
Mixture
d)
Chemical
82.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
83.

Which example is a compound?

a)

N2

b)

O2

c)

Cu

d)

H2O2

84.

Carbon is dull and brittle. Carbon is a

a)

metal

b)

nonmetal

c)

metalloid

85.

Elements that are normally in a gas form, that are dull, brittle, and poor conductors

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Solids

86.

High melting point:

a)

metals

b)

nonmetals

c)

metalloids

87.

This change is a

a)

chemical reaction

b)

physical change

c)

musical change

d)

Ice Ice baby

88.

How is a chemical change different from a physical change?

a)

there is no difference

b)

a physical change creates a new substance

c)

a chemical change creates a new substance

89.

A precipitate is a ___________ that forms when 2 liquids react together.

a)

solid

b)

liquid

c)

gas

d)

plasma

90.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
91.

Physical or Chemical?

a)

Physical

b)

Chemical

92.

Physical or Chemical?

a)

Physical

b)

Chemical

93.

Physical or Chemical?

a)

Physical

b)

Chemical

94.
Which of the given choices correctly shows the three main groups of elements listed from least conductivity to greatest conductivity?
a)
Metals, Nonmetals, Metalloids
b)
Nonmetals, Metalloids, Metals
c)
Metalloids, Metals, Nonmetals
d)
Nonmetals, Metals, Metalloids 
95.
What is a conductor?
a)
Heat and electricity move through them easily
b)
able to be drawn into a wire
c)
able to be hammered into different shapes
96.
Question Image

Match the following

a)

Metals

1.

Shiny Luster, Conductors, Malleable

b)

Nonmetals

2.

Dull Luster, Insulators, Brittle

c)

Metalloids

3.

Semi-Conductors, act like both metals and nonmetals

97.
Where are metalloids located on the periodic table?
a)
along the zig-zag line
b)
to the left of the zig-zag line
c)
to the right of the zig-zag line
98.

How would this element be classified?

a)

Metal

b)

Nonmetal

c)

Metalloid

99.

SOMETIMES I conduct heat and electricty, SOMETIMES I do not

a)

Dull

b)

Brittle

c)

Semi-conductor

100.

The ability to be drawn (made into) wires

a)

Malleable

b)

Ductile

c)

Luster

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