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Chemistry Unit Review

Total questions: 100

Worksheet time: 3hrs 47mins

Name
Class
Date
1.

Fill in the blank: _______ is an example of a chemical reaction.

a)

A) Burning fireworks

b)

B) Melting ice

c)

C) Mixing Kool-Aid with water

2.

Which of the following is NOT a chemical reaction?

a)

A) Baking a cake

b)

B) Melting ice

c)

C) Burning fireworks

d)

D) Burning Paper

3.

Fill in the blank: Baking a cake is considered a _______.

a)

A) Chemical Reaction

b)

B) Physical Change

4.

What happens to metal over a long period of time when it is exposed to the environment?

a)

It melts

b)

It rusts

c)

It evaporates

d)

It freezes

5.

Which of the following is a chemical change?

a)

Cutting an apple

b)

Breaking a glass

c)

Boiling an egg

d)

Tearing a piece of paper

6.

Which of the following statements describe chemical reactions? Select THREE that apply.

a)

Dissolving sugar in iced tea to make sweet tea.

b)

Cooking pancakes on a griddle.

c)

Two clear solutions, lead nitrate and potassium iodide, are combined and a yellow solid forms.

d)

A beaker feels cool to the touch after vinegar and baking soda are mixed in it.

e)

Water mixed with red drink mix forms a red liquid.

7.

Which of the following is LESS dense than water?

a)

the glass

b)

the tablets

c)

the bubbles

8.

Changes in which one or more new substance is formed are called

a)

phases of matter

b)

chemical changes

c)

physical changes

9.

Rust is a form of oxidation. This is what type of change?

a)

Physcial

b)

Chemical

10.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
11.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
12.

A new substance is formed during which type of change?

a)

Physical Change

b)

Chemical Change

13.
Exploding Fireworks?
a)
Physical Change 
b)
Chemical Change 
14.
Rotting bananas?
a)
Physical Change
b)
Chemical Change
15.

Label the picture as a physical change or a chemical change.

a)

physical change

b)

chemical change

16.

Label the picture as a physical change or a chemical change.

a)

physical change

b)

chemical change

17.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
18.
pancakes cook 
a)

physical change

b)

chemical change

19.

Which of the following are evidence of a chemical change?

a)

A new color appears

b)

Bubbles of gas are formed

c)

Precipitate forms

d)

Heat or light is produced

e)

All of these

20.

A shiny, malleable, conductor is a ​ (a)  

​ ​ ​ ​

Choose from the below words
metal
metalloid
nonmetal
21.

A dull,brittle, insulator is a ​ (a)  

​ ​ ​ ​

Choose from the below words
metal
metalloid
nonmetal
22.

A shiny or dull, flexible or brittle, semiconductor is a ​ (a)  

​ ​ ​ ​

Choose from the below words
metal
metalloid
nonmetal
23.

Sofia is making a new necklace for her jewelry store. She is looking for a material that is shiny, malleable, and ductile. Which of the following elements would work the best?

a)

Hydrogen (H)

b)

Oxygen (O)

c)

Carbon (C)

d)

Gold (Au)

24.

A metal can be made into a thin sheet and bend without breaking. This is called –

a)

malleability

b)

conductivity

c)

luster

d)

ductility

25.

The three basic types of elements listed on the periodic table of the elements are:

a)

metals, metalloids, nonmetals

b)

rare earth elements, metals, nonmetals

c)

Noble metals, noble gasses, rare earth elements

d)

Metalloids, coinage metals, noble gasses

26.

Potassium is shiny, a good conductor, and malleable. What type of element is potassium?

a)

metal

b)

metalloid

c)

nonmetal

27.

Elements in the shaded area can best be described as -

a)

Malleable

b)

Brittle

c)

Dull

d)

Insulators

28.

Elements in the shaded area can best be described as -

a)

Shiny and brittle

b)

Insulators

c)

Good conductors

29.
Look at the periodic table that is provided. Where would nonmetals be located? 
a)

left side

b)

right side 

c)

on the zigzag line 

30.
Look at the periodic table that is provided. Where would metals be located? 
a)

left side 

b)

right side

c)

on the zigzag line 

31.

Metalloids are on the_________ of the periodic table.

a)

Left side

b)

Right Side

c)

Stairstep

32.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

d)

superconductors

33.

Which elements are colored red?

a)

nonmetals

b)

metals

c)

metalloids

34.

Which two substances are the most dense?

A
B
C
D
E
F
G
H
I
J
35.

Which solid substance is the most dense?

A
B
C
D
E
F
G
H
I
J
36.

Which statement is correct?

a)

Corn syrup is more dense than water.

b)

Water is more dense than corn syrup.

c)

Water is less dense than oil.

37.

Water is more dense than cooking oil but less dense than glycerin.

a)

True

b)

False

38.

Which substance is the least dense?

a)

Water

b)

Glycerin

c)

C

d)

P

39.

Plastic is​ (a)   dense than water but ​ (b)  

dense than glycerin.

Choose from the below words
more
less
upper
lower
40.

Which two substances more dense than milk but less dense than corn syrup?

A
B
C
D
E
F
G
H
I
J
41.

Which two substances are the least dense?

A
B
C
D
E
F
G
H
I
J
42.

Which substances are more dense than canola oil and less dense than milk? Pick 2.

A
B
C
D
E
F
G
H
I
J
43.

Which ball is the least dense?

a)

A

b)

B

c)

C

44.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
45.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
46.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
47.
Causes a change in odor ...
a)
Chemical Reaction 
b)
Physical Reaction
48.

Two colorless liquids are mixed and a solid forms. How do we know a chemical change happened?

a)

A preciptiate formed

b)

The temperature decreased

c)

A gas formed

d)

Light was produced

49.

Which pictures show a chemical change?

A
B
C
D
E
F
50.

Which pictures show something new WAS made?

A
B
C
D
E
F
51.

Which pictures show a physical change?

A
B
C
D
E
F
52.

Which pictures show that something new was NOT made?

A
B
C
D
E
F
53.

Which processes show a chemical change?

A
B
C
D
E
F
54.

Which processes show a physical change?

A
B
C
D
E
F
55.

In your vinegar and baking soda experiment, which two observations indicated a chemical change occurred?

a)

gas production

b)

temperature change

c)

unexpected color change

d)

precipitate production

56.

Identify the metals.

A
B
C
D
E
F
G
H
I
57.

Identify the nonmetals.

A
B
C
D
E
F
G
H
I
58.

Identify the metalloids.

A
B
C
D
E
F
G
H
I
59.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
60.
Some characteristics of a metal are that it is malleable and ductile.
a)
TRUE
b)
FALSE
61.

Iron is a good conductor of heat and electricity, malleable and ductile. What type of element is Iron? 

a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
62.

Boron is shiny, brittle, and a semiconductor. What type of element is boron? 

a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
63.

Sulfur is a dull, yellow, brittle, insulator. What type of element is sulfur? 

a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
64.
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
65.
Which element is a metalloid?
a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
66.

Which element is a nonmetal?

a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
67.

Which type of element is titanium?

a)

metal

b)

metalloid

c)

nonmetal

68.

Which type of element is potassium?

a)

metal

b)

metalloid

c)

nonmetal

69.
Anytime you see the word SEMICONDUCTOR - what substance do you have?
a)
Metal
b)
Nonmetal
c)
Metalloid
70.

All of these properties describe metals except...

a)

malleable

b)

conductors

c)

brittle

d)

shiny

71.
a)

Metal

b)

Nonmetal

c)

Metalloid

72.
a)

Metal

b)

Nonmetal

c)

Metalloid

73.
a)

Metal

b)

Nonmetal

c)

Metalloid

74.
a)

Metal

b)

Nonmetal

c)

Metalloid

75.

Look at the chart. Which answer choice correctly describes the chart?

a)

Column A describes metals

b)

Column A describes nonmetals

c)

Column B describes metalloids

d)

Both Column A and Column B describe metals

76.

Based on these observations, which sample is most likely a nonmetal?​ (drag the correct answer up here) ​ ​ (a)  

Choose from the below words
Sample 1
Sample 2
Sample 3
Sample 4
77.

Fill in the blank: Heat and ___________ travel easily through metals.

a)

electricity

b)

dull

c)

changed

d)

luster

e)

metals

78.
a)

Metal

b)

Nonmetal

c)

Metalloid

79.
a)

Metal

b)

Nonmetal

c)

Metalloid

80.
a)

Metal

b)

Nonmetal

c)

Metalloid

81.
How would this element be classified?
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Metamorphic
82.
A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a 
a)
metal
b)
nonmetal
c)
metalloid
d)
cannot be determined
83.

Are NOT good conductors of heat.

a)

Metals

b)

Nonmetals

c)

Metalloids

84.

Sometimes are good conductors of heat.

a)

Metals

b)

Nonmetals

c)

Metalloids

85.

Nonmetals are 'brittle' or

a)

strong

b)

easily broken

86.

Metals are 'shiny' and reflective.

a)

Luster

b)

Malleable

c)

Ductile

87.

Metals are able to be pulled into wires.

a)

luster

b)

malleable

c)

ductile

88.
´Elizabeth was examining elements and their physical properties. She described an element is her science journal as having no shine, an insulator, and  very brittle. What would this element be a metal, nonmetal, or metalloid?
a)
metal 
b)
nonmetal 
c)
metalloid
89.
Which table below correctly lists the properties of metals and nonmetals? *
a)
A
b)
B
c)
C
d)
D
90.
A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal? 
a)
Hydrogen
b)
Arsenic
c)
Krypton
d)
Copper
91.

The table shows the properties of four elements. What type of element is sulfur?

a)

nonmetal

b)

metal

c)

metalloid

92.
Some characteristics of a metal are that it is malleable and ductile.
a)
TRUE
b)
FALSE
93.

All of these properties describe metals except...

a)

malleable

b)

conductors

c)

brittle

d)

shiny

94.
Look at the periodic table that is provided. Where would metals be located? 
a)

left side 

b)

right side

c)

on the zigzag line 

95.
Look at the periodic table that is provided. Where would nonmetals be located? 
a)

left side

b)

right side 

c)

on the zigzag line 

96.
How do metals differ from nonmetals?
a)
metals are shiny, nonmetals are dull
b)
metals are good insulators, nonmetals are good conductors
c)
metals are powdery
d)
nonmetals are shiny
97.
What are the three major categories of the periodic table?
a)
Alpha, Beta & Gamma
b)
Metals, Non-Metals and Metalloids
c)
Metals, Semi-metals and Metalloids
d)
Non-Metals, Semi-Metals and Metalloids
98.
The table shows the classification and physical state of four elements.Which element most likely has a shiny luster?
a)
Cobalt
b)
Arsenic
c)
Hydrogen
d)
Carbon
99.
Pure sodium has luster, bends easily, and conducts electricity.  Based off these properties, it would be classified as?
a)
A Metal
b)
A non metal
c)
A metalloid
100.
Fluorine is used in many tooth pastes because it helps maintain healthy teeth.  At room temperature it is gaseous, and does not conduct electricity. Based off these properties, it would be classified as?
a)
A metal
b)
A non metal
c)
A metalloid

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