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CA1 REview

Total questions: 155

Worksheet time: 8hrs 45mins

Name
Class
Date
1.

Which of the following results in a substance not transforming into a completely new substance?

a)

Physical change

b)

Physical property

c)

Chemical change

d)

Chemical property

2.

Which of the following is an example of a chemical property?

a)

The basketball is orange.

b)

The gasoline is flammable.

c)

The bike is made of metal.

d)

The slice of cheese is a solid.

3.

What is the main difference between a physical change and a chemical change?

a)

Physical changes alter the composition whereas chemical changes alter the appearance of a substance

b)

Physical changes describe the appearance of a substance whereas chemical changes describe qualities only observed with a reaction.

c)

Physical changes describe qualities only observed with a reaction whereas chemical changes describe the appearance of a substance.

d)

Physical changes alter the appearance whereas chemical changes alter the composition of a substance.

4.

Which of the following statements about elements and compounds is accurate?

a)

Elements are many different types of atoms together but compounds are just one type of atom.

b)

Elements are pure substances that cannot be broken down physically but compounds are pure substances that can be broken down physically.

c)

Elements are not found on the Periodic Table but compounds are found on the Periodic Table.

d)

Elements are pure substances that cannot be broken down chemically but compounds are pure substances that can be broken down chemically.

5.

Which of the following could be the chemical formula for a compound?

a)

Na

b)

CO2

c)

H2 + O2

d)

Au

6.

Which of the following could be the chemical formula for an element?

a)

Si2

b)

H2O

c)

C + O2

d)

C6H12O6

7.

A student noticed a yellow, solid substance was formed when mixing two clear liquids during a lab. What term describes this yellow, solid substance?

a)

Physical change

b)

Physical property

c)

Endothermic and exothermic reaction

d)

Precipitate

8.

What is the number of molecules in 7H2O2 ?

a)

4

b)

7

c)

2

d)

1

9.

How many atom of Carbon are in C9H8O4

a)

1

b)

8

c)

12

d)

9

10.

How many elements are in 6NaOH ?

a)

4

b)

6

c)

3

d)

1

11.

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms?

a)

H3PO4

b)

H2SO4

c)

H2O2

d)

H2O

12.

What is the chemical formula for water?

a)

H2O

b)

CO2

c)

NaCl

d)

O2

13.

Which of the following is a physical property of matter?

a)

Color

b)

Reactivity with acid

c)

Flammability

d)

Ability to rust

14.

How many hydrogen atoms are in C6H12O6?

a)

6

b)

12

c)

18

d)

24

15.

Why is water classified as a compound?

a)

Because it is an element, which consists of only one type of atom.

b)

Because it is a substance, which can easily be separated.

c)

Because it is a substance composed of two or more kinds of atoms bonded together.

d)

Because it is an unevenly mixed solution, or a heterogeneous mixture.

16.

The mass of the products in a chemical reaction is the same as the mass of the reactants in the reaction. Which law best describes this statement?

a)

The Law of Conservation of Angular Momentum

b)

The Law of Superposition

c)

The Law of Conservation of Matter

d)

The Law of Entropy

17.

Which is an example of a chemical reaction?

a)

a pot of water boiling

b)

an iron nail rusting

c)

a piece of ice melting

d)

a sugar cube dissolving in tea

18.

Chemical XX  has a mass of 5 grams, and chemical YY   has a mass of 10 grams. If the two chemicals are mixed and a complete chemical reaction takes place, what is MOST LIKELY the mass of the product?

a)

5 grams

b)

15 grams

c)

10 grams

d)

50 grams

19.

Which is an example of a physical change?

a)

boiling

b)

burning

c)

rotting

d)

rusting

20.

What characteristic of aluminum allows it to be made into aluminum foil?

a)

It is dense.

b)

It is soluble.

c)

It is magnetic.

d)

It is malleable.

21.

Which substance is composed of more than one element?

a)

water

b)

carbon

c)

gold

d)

sodium

22.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

23.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

24.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

25.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

26.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

27.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

28.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

29.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

30.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

31.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

32.
a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

33.

What type of substance is pictured?

a)

element

b)

compound

c)

mixture

d)

solution

34.

Matter that contains 2 or more substances that differ in physical and chemical properties.

a)

an element

b)

a compound

c)

a mixture

d)

jello

35.

Matter that has definite chemical and physical properties.

a)

an element

b)

a compound

c)

a molecule

d)

a mixture

e)

a pure substance

36.

Substances are evenly mixed; you cannot see the different substances that it is made of.

a)

Homogeneous mixture

b)

Heterogeneous mixture

37.

Substances are not evenly mixed; you can see all the different substances that it is made of.

a)

Homogeneous mixture

b)

Heterogeneous mixture

38.

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

39.

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

40.

Which of these is a mixture?

a)

Laundry Detergent

b)

Salt (NaCl)

c)

Oxygen (O)

d)

Fluorine (Fl)

41.
The picture shown here is what type of mixture?
a)
homogeneous
b)
hetergeneous
c)
pure substance
d)
element
42.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

Ketchup

d)

Milk

43.

Classify the following substance: Orange juice (With Pulp)

a)

Heterogeneous Mixture

b)

Homogeneous Mixture

c)

Elemental Pure Substance

d)

Substance

44.

True or False: elements AND compounds are pure substances.

a)

True

b)

False

45.
Water is
a)
a pure substance
b)
a mixture
46.
Ocean water is a __________ mixture
a)
Homogeneous
b)
Heterogeneous
47.
Alex goes into the garden and digs up a shovel full of dirt.  This is a _____________ mixture.
a)
Homogeneous
b)
Heterogenous
48.

According to the EMCE Lesson 2 Lab Substances D was classified as _____________.

a)

homogeneous

b)

heterogeneous

49.

According to the EMCE Lesson 2 Lab Substances A was classified as _____________.

a)

mixture

b)

pure substance

50.

Shampoo is classified as what type of mixture?

a)

homogeneous

b)

heterogeneous

51.

Ketchup is classified as what type of mixture?

a)

homogeneous

b)

heterogeneous

52.

Categorize each in the correct space.

Categorize the following
Element
Compound
Mixture
53.

Both elements and compounds are pure substances.

a)

Agree

b)

Disagree

54.

Two or more different elements chemically combine to form compounds.

a)

Agree

b)

Disagree

55.

Compounds have properties different from the elements that make it up.

a)

Agree

b)

Disagree

56.

Represented by an unique chemical symbol

a)

Elements

b)

Compounds

c)

Both

57.

Can be broken down into a simpler substance

a)

Elements

b)

Compounds

c)

Both

58.

Located on the Periodic Table

a)

Elements

b)

Compounds

c)

Both

59.

Composed of at least two different elements

a)

Elements

b)

Compounds

c)

Both

60.

Cannot be broken down into a simpler substance

a)

Elements

b)

Compounds

c)

Both

61.

This picture represents which of the following?

a)

element

b)

compound

62.

This picture represents which of the following?

a)

element

b)

compound

63.

This picture represents which of the following?

a)

element

b)

compound

64.

This picture represents which of the following?

a)

element

b)

compound

65.

This picture represents which of the following?

a)

element

b)

compound

66.

This picture represents which of the following?

a)

element

b)

compound

67.

This picture represents which of the following?

a)

element

b)

compound

68.

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---

a)

a gas at room temperature.

b)

made of two different elements.

c)

given off by green plants.

d)

useful to human beings

69.

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.

70.
A compound consists of two or more elements bound together.
a)
True
b)
False
71.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
72.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
73.
a)

Metal

b)

Nonmetal

c)

Metalloid

74.
a)

Metal

b)

Nonmetal

c)

Metalloid

75.
a)

Metal

b)

Nonmetal

c)

Metalloid

76.
One property of a nonmetals is that it is a good conductor of electricity?
a)
true
b)
false
77.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
78.
All of these properties describe metals except...
a)
malleable
b)
conductors
c)
brittle 
d)
shiny
79.
Which elements are found on the right side of The Periodic Table?
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Water
80.
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
81.
Which elements are found on the left to middle of The Periodic Table? 
a)
Metals
b)
Nonmetals
c)
Metalloids
d)
Candles
82.
Iron is a good conductor, malleable and magnetic. What type of element is Iron? 
a)
Metal
b)
Nonmetal
c)
Metalloid
d)
Pretty
83.
If a material can easily be drawn into the shape of a wire, it is
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
84.
Some characteristics of a metal are that it is malleable and ductile.
a)
TRUE
b)
FALSE
85.
Which of the following is a good conductor of heat?
a)
Metal
b)
Nonmetal
c)
Metalloid
86.
Which of these grouping of elements could have the characteristic of brittle?
a)
Metal
b)
Nonmetal
87.
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
88.

Copper is a common metal. Which of the following properties does this metal most likely have?

a)

High conductivity, high malleability, and low luster

b)

Low conductivity, low malleability, and low luster

c)

High conductivity, high malleability, and high luster

d)

Low conductivity, high malleability, and high luster

89.

_______________ is the first element at the top of the stair step.

a)

hydrogen

b)

boron

c)

silicon

d)

carbon

90.

This group of elements sit along a stair step line on the periodic table and have properties of both metals and nonmetals. _________________________

a)

luster

b)

metals

c)

nonmetals

d)

metalloids

91.

This group of elements have properties that are opposite those of metals. ______________________

a)

luster

b)

nonmetals

c)

metalloids

d)

metals

92.

Most metals are ____________ at room temperature.

a)

gas

b)

liquid

c)

solid

d)

left

93.

Metals are found on the ______________ side of the periodic table.

a)

nonmetals

b)

left

c)

right

d)

metals

94.

______________ refers to the way a metal can be hammered or rolled into thin sheets.

a)

Luster

b)

Malleable

c)

Metalloids

d)

Solid

95.

The way a metal’s surface reflects light is called ________________.

a)

dull

b)

luster

c)

solids

d)

metal

96.

______________ refers to the way most metals can be stretched into wires.

a)

Luster

b)

Ductile

c)

Malleable

d)

Metal

97.

_____________ ______________ are things you can observe and describe about matter without it changing chemically.

a)

Chemical properties

b)

Luster

c)

Physical properites

d)

Ductile

98.

Which one shows that a chemical reaction has occurred?

a)

dissolving

b)

melting

c)

formation of a gas

d)

bending

99.

A substance that is formed as the result of a chemical reaction is a __________________

a)

Product

b)

Reactant

c)

Starters

d)

Enders

100.
What type of change occurs when a new substance is formed that has different properties from the original substances?
a)
chemical change
b)
nuclear change
c)
physical change
d)
mutation
101.
True or False
In a chemical reaction, no new atoms are created, and no atoms are destroyed. 
a)
true
b)
false
102.

what is the biggest group on the table

a)

metals

b)

nonmetals

c)

metaloids

d)

halogens

103.

symbols must have at least

a)

1 cap. letter

b)

2 cap. letters

c)

2 lower case letters

d)

any letter you want

104.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

105.

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

106.

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

a)

Periodic Table of Elements

b)

Atomic Theory

c)

Isotopes

d)

Subatomic Particles

107.

one or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

108.
What is the symbol for Potassium?
a)
P
b)
K
c)
Pb
d)
Pd
109.
What is the symbol for Carbon?
a)
C
b)
Ca
c)
Cl
d)
H
110.
What is the name of this element?
a)
Helium
b)
Rubidium
c)
Hydrogen
d)
Mercury
111.
___________ is the only metal that is a liquid at room temperature.
a)
Platinum
b)
Water
c)
Tin
d)
Mercury
112.
What element is this?
a)
Silver
b)
Silicon
c)
Sulfur
d)
Selenium
113.
What is the element symbol for boron? 
a)
B
b)
Bo
c)
Bn
d)
W
114.
GOLD
a)
Al
b)
Ag
c)
Ar
d)
Au
115.
CALCIUM
a)
C
b)
Ca
c)
Cu
d)
Cl
116.
COPPER
a)
C
b)
Ca
c)
Cu
d)
Cl
117.
Which of the following is a pure substance?
a)
O2
b)
Al2CO5
c)
C6H12O6
d)
SiO2
118.
How many different elements are in this chemical formula: C2H2ClK3
a)
6
b)
8
c)
2
d)
4
119.
Which of the following chemical formulas represents a compound? 
a)
C3
b)
O2
c)
CH3CHO
d)
H2
120.
What is water?
a)
element
b)
compound
c)
mixture
121.
You should never ______ chemicals in the lab. 
a)
taste
b)
touch
c)
smell
d)
all of the above
122.
If you are not sure what to do during a lab activity:
a)
guess
b)
change lab partners
c)
ask a teacher
d)
just sit quietly and do nothing
123.
Keeping your work area neat and clean is important because:
a)
My teacher is a neat-freak
b)
I won't lose my supplies in the clutter.
c)
It keeps the room from looking messy.
d)
It helps prevent accidents.
124.
I can perform my own experiments with lab materials ___.
a)
I am sure it is safe to do so.
b)
Whenever I want to.
c)
When all of my group is ready.
d)
Never.
125.
Disrupting other students in the laboratory with horseplay in the lab is:
a)
helpful.
b)
allowed
c)
dangerous.
d)
the quickest way to do a job.
126.
What is the CORRECT procedure for students to follow if a chemical is spilled?
a)
Stand back and advise the teacher of the spill.
b)
Run madly out of the room.
c)
Splash large amounts of water onto the spill.
d)
Immediately ask to go to the restroom.
127.
Helping to clean up the lab or classroom is the job of
a)
old students.
b)
transfer students.
c)
each and every student.
d)
only the teacher.
128.
At the end of the lab you see some leftover chemical that looks just like the stuff you were using.  You should:
a)
put the chemical back in the jar it came from.
b)
sweep it into your hand and throw it out.
c)
tell the teacher so you can dispose of it properly.
d)
tell your classmates that your lab partner is really messy.
129.
Which of the following IS considered safety equipment in our classroom?
a)
Eyewash Station
b)
Emergency Shower
c)
Fire Extinguisher
d)
All of the Above.
130.
You should report accidents to the teacher __.
a)
after the class is over
b)
immediately 
c)
the following day
d)
never
131.
Which of the following are examples of dressing appropriately in the lab?
a)
Pulling long hair back
b)
Leaving long hair down to get in the chemicals. 
c)
Wearing sandals
132.
When should you look over the experiment instructions? 
a)
After starting the lab
b)
When your teacher tells you to
c)
Before starting the lab
d)
It doesn't really matter.  Instructions are silly!
133.
Labs are individual activities and you should ignore your group members or be the only one working. 
a)
True
b)
False
134.

Approved goggles are worn in the laboratory -

a)

to avoid eye strain

b)

just to improve your vision

c)

only if you don’t wear glasses

d)

any time chemicals, heat or glassware are used

135.

You should wear googles to -

a)

to look cool

b)

to block out sunlight

c)

protect your eyes from chemicals

d)

protect your ears from loud sounds

136.

What does this symbol represent?

a)

donate blood

b)

beware of sharp objects

c)

grab with bare hands

d)

watch out for hot glass

137.

If your teacher instructs you to smell a chemical, you should do so carefully in a wafting motion.

a)

True

b)

False

138.
When in the lab...
a)
long sleeves and loose clothing should be rolled up
b)
closed toe shoes should be worn
c)
long hair should be pulled back
d)
all of the above
139.

If you break glassware in the lab, you should...

a)

Tell the teacher

b)

Clean it up quickly before the teacher notices

c)

Scream at the top of your lungs

d)

Scoop it under the lab table

140.

In a laboratory, the following should NOT be worn

a)

gloves

b)

open toed shoes

c)

apron

d)

goggles

141.

In the classroom you should stack your bags and books in the aisles.

a)

True

b)

False

142.
Horseplay or practical jokes in the laboratory are
a)
ok as long as  you're done
b)
always accepted
c)
dangerous and could cause harm and invalidate the experiment
d)
fun
143.

If you do not understand a direction or part of a lab procedure, you should

a)

figure it out on your own as you go

b)

ask your teacher

c)

guess

d)

write a pros and cons list

144.
You have been injured in the laboratory (cut, burn, etc.). First you should
a)
apply first aid yourself
b)
tell the science instructor at once
c)
see a doctor after school
d)
visit the school nurse after class
145.
You are heating a piece of glass and now want to pick it up. You should 
a)
pour cold water on it
b)
use tongs
c)
pick up the end that looks cooler
d)
use a rag or paper towels
146.

A student can pick up any broken glass as long as they throw it in the trash.

a)

True

b)

False

147.
Chipped or cracked glassware is okay to use.
a)
True
b)
False
148.

If electrical equipment is damaged,

a)

try to fix it.

b)

report it to the teacher.

c)

use it anyway.

149.
To put out a fire on a person's hair or clothes, use:
a)
the fire blanket.
b)
the wind from running.
c)
the fire extinguisher.
d)
any wet chemical you can find.
150.

When removing the plug from a socket,

a)

after washing your hands, unplug the cord.

b)

grab the cord and jerk it out of the wall

c)

grasp the plug

151.
Long hair in the laboratory must be 
a)
A. cut short. 
b)
B. held away from the experiment with one hand.
c)
 C. always neatly groomed.
d)
D. tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.
152.
If you wear contact lenses in the school laboratory
a)
take them out before starting the lab
b)
you do not have to wear protective goggles
c)
 advise your science instructor that you wear contact lenses
d)
 keep the information to yourself
153.

If you do not understand how to use a piece of equipment,

a)

try to figure it out.

b)

ask your lab partner and then do it.

c)

ask the instructor.

154.

Which of the following are types of personal protective equipment (PPE)? Check all that apply.

a)

gloves

b)

goggles

c)

apron or lab coat

d)

face shield

155.

What does the materials safety data sheet (MSDS) for a chemical tell you? Check all that apply.

a)

how to handle the chemical

b)

how to store the chemical

c)

the properties of a chemical (flammability, toxicology, etc.)

d)

how much of the chemical is left in the container

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Coal and Petroleum, Combustion, Sound and Friction - combine rev

quiz

Worksheet

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8th Grade

REVISION HUMAN HEALTH FORM 2

150 questions

REVISION HUMAN HEALTH FORM 2

quiz

Worksheet

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8th Grade

STAAR Reteach

150 questions

STAAR Reteach

quiz

Worksheet

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8th Grade

Exam Revision

152 questions

Exam Revision

quiz

Worksheet

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8th - 9th Grade

Fall EOC Quizziz Review

158 questions

Fall EOC Quizziz Review

quiz

Worksheet

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8th Grade

Review: Earth's Place in the Universe

151 questions

Review: Earth's Place in the Universe

quiz

Worksheet

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8th Grade