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unit 1 Test: Chemistry Beginnings

Total questions: 142

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

What does the blue color on the NFPA diamond stand for?

a)

Special Information

b)

Health Hazard

c)

Flammability Hazard

d)

Reactivity Hazard

2.

What does the white color on the NFPA diamond stand for?

a)

Special Information Hazard

b)

Health Hazard

c)

Flammability Hazard

d)

Reactivity Hazard

3.

What does the red color on the NFPA diamond stand for?

a)

Special Hazard

b)

Health Hazard

c)

Flammability Hazard

d)

Reactivity Hazard

4.

What does the yellow color on the NFPA diamond stand for?

a)

Reactivity Hazard

b)

Radioactivity Hazard

c)

Flammability Hazard

d)

Health Hazard

5.

Which is the most significant hazard the chemical has?

a)

Very reactive

b)

Toxic

c)

Highly flammable

d)

Body injury

6.

Which type of hazard has the lowest rating for this chemical?

a)

Health hazard

b)

Reactivity

c)

Toxicity

d)

Radioactivity

7.

It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can.

a)

True

b)

False

8.

Horseplay, practical jokes, or pranks in the classroom are

a)

not dangerous.

b)

okay if you are working alone.

c)

always against the rules.

d)

okay.

9.

What does MSDS stand for?

a)

Material Safety Data Sheet

b)

Modern Safety Day Special

c)

Medium Small Data Stuff

d)

Made Something Doing Something

10.

Match the following

a)

Qualitative data

1.

Descriptions about experimental data

b)

Quantitative data

2.

Numerical info about experimental data

c)

scientific law

3.

rule that describes a pattern in nature

d)

scientific theory

4.

tested concept that explains observation

11.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
12.

In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which scientific term is used to describe a testable model that seeks to explain natural phenomena?

a)

data

b)

hypothesis

c)

theory

d)

observation

13.
Scientific theories are based on
a)
general assumptions of how systems work.
b)
mathematical principles that can be proven true.
c)
large amounts of data collected over time.
d)
observations from within only one scientific discipline.
14.

A scientific law is a repeatable pattern in nature

a)

True

b)

False

15.

Abigail and Laddaris were testing which color candle would burn the fastest with their teacher. They thought the red one would burn the fastest and made their prediction before doing the experiment.

What part of the scientific method is this called?

a)

a) hypothesis

b)

b) materials

c)

c) procedure

d)

d) data

16.

Type of data that is measured with numbers; example: temperature of water:

a)

quantitative

b)

qualitative

c)

experimental

d)

observational

17.

Type of data that is in the form of a description; example:  color of the water:

a)

qualitative

b)

quantitative

c)

experimental

d)

observational

18.
a)
The dependent variable is total cost
b)
The dependent variable is weight
c)
The independent variable is total cost
d)
The independent variable is cost of a package
19.
On a graph, which axis shows the dependent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
20.
On a graph, which axis shows the independent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
21.
How many independent variables can be tested in a controlled experiment?
a)
one
b)
two
c)
three
d)
as many as possible
22.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
23.
Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?
a)
Type of gasoline
b)
which car the gas is put into
c)
how fast the car can drive
d)
how much gas is put into the car
24.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Ms. S, etc)
25.

In an experiment to find out how the temperature affects the bounce height of a ball, the dependent variable is ...

a)
temperature
b)
bounce height
c)
the thermometer
d)
the ruler
26.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
27.

The one variable in an experiment that is purposely changed and tested by the scientist is the________________.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

28.
a)
The dependent variable is total cost
b)
The dependent variable is weight
c)
The independent variable is total cost
d)
The independent variable is cost of a package
29.

What is the independent variable for this graph?

a)

The Relationship between Time Spent Studying and Test Grades

b)

The effect of Time Spent Studying and Test Grades

c)

Time Spent Studying

d)

Test Grades

30.

A car is timed around a race track for 8 laps. The laps are numbered in order. Look at the relationship between Lap Number and Lap Time (seconds).


What type of relationship is this?

a)

Direct

b)

Inverse

c)

Diagonal

d)

Horizontal

31.
Name the INDEPENDENT variable from the table below.
a)
words
b)
minutes
32.

In the table, Bubbles is the ______________.

a)

independent variable

b)

dependent variable

33.

Which of the following is the label for the independent variable.

a)

Money Collected

b)

Raising Money

c)

Boxes Sold

d)

None of the above

34.
a)
the independent variable is distance
b)
the independent variable is d=25 t
c)
the dependent variable is time
d)
the dependent variable is distance
35.

PPE stands for

a)

Personal perspective Equipment

b)

b. Private protective equipment

c)

c. Private Pain equipment

d)

d. Personal Protective Equipment

36.

If a harmful chemical splashes in your eyes or on your skin, you should—

a)

ignore it and hope it goes away.

b)

wipe it off with a paper towel and finish the lab.

c)

flush with water at the eyewash station or in the lab shower and tell the teacher.

d)

run to the bathroom.

37.

Broken glass should be cleaned up by—

a)

telling the teacher immediately and letting them deal with it

b)

picking it up with your hands.

c)

throwing it away in a normal trash can.

d)

hiding it in a lab drawer.

38.

When you first enter a laboratory, you should—

a)

arrange and move items to the way you think is best.

b)

finish eating quickly so you have enough time to complete the lab.

c)

wait for your teacher’s instructions to begin without touching anything.

d)

put your sandals on so that you don’t get hot.

39.

Goggles are worn in the laboratory

a)

A. to avoid eye strain.

b)

B. to improve your vision

c)

C. only if you don’t have corrective glasses.

d)

D. any time chemicals, heat, or glassware are used.

40.
What should you NEVER do in the lab?
a)
Play practical jokes on people
b)
All of these
c)
Run while holding a beaker with chemicals
d)
Mess around with your friends
41.

Which piece of lab equipment is used to transfer small amounts of liquid?

a)

Graduated cylinder

b)

Pipette

c)

Test tube

d)

Flask

42.
To be read accurately, one must place a graduated cylinder on a flat surface and measure at the bottom of the _______________ curve.
a)
Centrifugal
b)
Capillary
c)
Meniscus
d)
Infinity
43.
Identify the primary function of the lab equipment seen in the image.
a)
Transfer small amounts of liquid
b)
Transfer large amounts of liquid
c)
Measure liquid volume
d)
Mixing liquid chemicals
44.
Identify the primary function of the lab equipment seen in the image.
a)
Mixing liquids
b)
Measuring liquid volume
c)
Mixing solids
d)
Measuring mass
45.
Identify the piece of lab equipment seen in the image.
a)
Erlenmeyer Flask
b)
Graduated Cylinder
c)
Beaker
d)
Test Tube
46.
Identify the piece of lab equipment seen in the image.
a)
Pipets
b)
Test Tubes
c)
Forceps
d)
Scoopulas
47.

After completing an experiment, all chemical wastes should be—

a)

Left at your lab station for the next class

b)

Disposed of according to your instructor's directions

c)

Dumped in the sink

d)

Taken home

48.

Long hair in the laboratory must be

a)

cut short

b)

held away from the experiment with one hand

c)

always neatly groomed

d)

tied back or kept entirely out of the way with a hair band

49.
When smelling a liquid you should
a)
inhale deeply
b)
waft the odor toward you
c)
use a fan
d)
pour it on the table
50.
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.
51.
When in the lab you should wear...
a)
open-toed shoes.
b)
sandals.
c)
closed-toes shoes.
d)
no shoes.
52.

What should you do before starting any experiment in the laboratory?

a)

Proceed directly with the experiment

b)

Read and understand all the safety instructions related to the reagents and equipment

c)

Only consult the Safety Data Sheets (SDS) if an accident occurs

d)

Ignore the instructor's instructions if they seem unnecessary

53.

When selecting Personal Protective Equipment (PPE), which of the following is NOT considered appropriate?

a)

Open sandals for greater comfort

b)

Chemical-resistant gloves

c)

Safety glasses

d)

Laboratory coats

54.

What should you do if you don't understand the instructions given for an experiment?

a)

Ask a fellow student for help

b)

Guess the procedure and hope for the best

c)

Seek clarification from the instructor or supervisor

d)

Ignore the instructions and do the experiment your own way

55.

Approved eye protection devices (such as goggles) are worn in the laboratory ____.

a)

to avoid eye strain

b)

to improve your vision

c)

only if you do not have corrective glasses

d)

any time chemicals, heat, or glassware are used

56.

What is the correct action to take if a chemical reagent is spilled?

a)

Ignore it and continue with the experiment

b)

Ask a colleague to clean it up.

c)

Clean it immediately with paper towels

d)

Immediately inform the instructor and follow the specific handling instructions

57.

When determining the compatibility of chemical waste mixtures for disposal, what resource is most critical?

a)

The laboratory’s general waste disposal guidelines

b)

The chemical’s Safety Data Sheet (SDS) for each component

c)

Advice from a colleague

d)

A generic online search for chemical compatibility

58.

Which of the following Personal Protective Equipment (PPE) should be used? Select all that apply

a)

A lab coat

b)

Breathable mesh sneakers for comfort

c)

Latex gloves for chemical resistance

d)

Safety goggles to protect against splashes

59.

Before using a fume hood to work with volatile reagents, you should:

a)

Verify that the hood is turned on and functioning properly

b)

Make sure it is turned off to avoid annoying noises

c)

Open the laboratory windows to improve ventilation

d)

Work as quickly as possible to minimize exposure

60.

In the event of a small fire in your work area, what is the first step you should take? Select all that apply

a)

Evacuate the laboratory

b)

Attempt to extinguish it with water

c)

Take photos for the incident report

d)

Use the appropriate fire extinguisher for the type of fire, if you feel capable of doing so

61.

At the end of an experiment, the proper disposal of chemical waste includes:

a)

Pouring them down the nearest drain

b)

Leaving them in the fume hood to evaporate

c)

Storing them in a common area until the laboratory is cleaned

d)

Following specific procedures in SDS for their safe disposal

62.

What is the importance of keeping emergency exits and hallways clear in the laboratory?

a)

To ensure a quick and safe evacuation in case of an emergency

b)

To prevent visual clutter and maintain the laboratory's aesthetics

c)

To facilitate access to laboratory equipment

d)

To create space for additional storage

63.

Why is it important to know the location of eye wash stations and emergency showers?

a)

They provide a good place to clean up before breaks.

b)

In case of chemical exposure, quick access can be vital

c)

They are usually where the cleanest water is found

d)

It’s a good meeting point in case of evacuation

64.

Why is it important to wear closed-toe shoes in the laboratory?

a)

To make a fashion statement

b)

To protect your feet from falling objects or spills

c)

To keep your feet cool and comfortable

d)

To show respect for the laboratory environment

65.

Why is it important to label all chemical containers in the laboratory?

a)

To make the lab look organized

b)

To confuse other lab members

c)

To ensure proper identification and prevent accidents

d)

Labels are not necessary in a lab setting

66.

Why is it important to wear a lab coat in the laboratory?

a)

To make a fashion statement

b)

To protect you from spills and splashes

c)

To show off your personal style

d)

To keep warm in a cold lab environment

67.

What is a homogeneous mixture?

a)

a physical combination of substances that looks the same all the way through

b)

a chemical combination of two or more substances

c)

a physical combination of substances in which you can see the different parts

d)

the simplest form of matter that cannot be broken down further

68.

Which of the following is a heterogeneous mixture?

a)

water

b)

tea

c)

salt water

d)

sand and water

69.

What are gases?

a)

They have no definite shape or volume and will fill any container they are in.

b)

They take the shape of their containers and have a definite volume.

c)

They have a definite shape and volume.

70.

Choose all the correct answers: Which of the following are pure substances?

a)

Hydrogen (H)

b)

Sugar Water

c)

Sodium Chloride (NaCl)

d)

Chocolate Milk

71.

What are liquids?

a)

They have no definite shape or volume and will fill any container they are in.

b)

They have a definite shape and volume.

c)

They take the shape of their containers and have a definite volume.

72.

Which of the following is an example of a physical change?

a)

sodium metal blowing up when placed in water

b)

ice melting

c)

a bike rusting in the rain

d)

milk going sour

73.

Is the following a pure substance or mixture? Baking Soda ( NaHCO3NaHCO_3 ) 

a)

pure substance

b)

mixture

74.

Is the following an element or compound? A silicon (Si) chip.

a)

element

b)

compound

75.

Is the following an element or compound? hydrogen peroxide (H2O2)

a)

element

b)

compound

76.

Is the following homogeneous or heterogeneous? Fruit salad

a)

homogeneous mixture

b)

heterogeneous mixture

77.

Classify the particle diagram.

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

78.

Classify the particle diagram.

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

79.

Classify the particle diagram.

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

80.

Classify the particle diagram.

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

81.

Classify the particle diagram.

a)

element

b)

compound

c)

mixture of elements

d)

mixture of compounds

e)

mixture of elements and compounds

82.

How would you classify this image?

a)

homogeneous mixture

b)

heterogeneous mixture

83.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
84.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
85.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
86.
When water boils, water vapor is produced and escapes into the air. Which BEST describes this change?
a)
Melting
b)
Freezing
c)
Physical Change
d)
Chemical Change
87.
Some power plants produce energy by burning coal. In these power plants, the heat from burning coal is used to boil water. Which statement best describes the changes that occur when burning coal and boiling water?
a)
Burning coal and boiling water are both physical changes
b)
Burning coal and boiling water are both chemical changes
c)
Burning coal is a chemical change, and boiling water is a physical change
d)
Burning coal is a physical change and boiling water is chemical change
88.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
89.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
90.
Rust on an iron fence
a)
Chemical Change
b)
Physical Change
91.
Boiling water
a)
Chemical Change
b)
Physical Change
92.
What Is Matter?
a)
Anything That has weight and takes up space.
b)
Anything that you can see or taste.
c)
What you can touch.
d)
you and go throught this.
93.
What Is Volume?
a)
How heavy something is.
b)
The amount of space taken up by and object.
c)
How a liquid flows.
d)
The international unit of measurement.
94.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
95.
Melting
a)
liquid to solid
b)
solid to liquid
c)
solid to gas
d)
gas to liquid
96.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
97.
How are the particles moving in liquids?
a)
Sliding past one another
b)
moving past one another with great speed
c)
vibrating in a fixed postion
98.

The state of matter where particles are very spread out and moving quickly.

a)

gas

b)

liquid

c)

solid

d)

Helium

99.

What kind of matter is soil?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

100.

What kind of matter is salt (NaCl)?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

101.

What kind of matter is Calcium (Ca)?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

102.

What kind of matter is Iron (Fe)?

a)

Element

b)

Compound

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

103.

A physical blend of 2 or more components is called a ____.

a)

type of element

b)

mixture

c)

chemical reaction

d)

physical property

104.

A mixture in which the composition is NOT uniform throughout is called a _____ mixture.

a)

Heterogeneous

b)

Homogeneous

105.

What type of material is pictured?

a)

Element

b)

Compound

c)

Heterogeneous mixture

d)

Homogeneous mixture

106.

What type of matter is formed from two or more elements chemically bonded together?

a)

atoms

b)

elements

c)

molecules

d)

compounds

107.

Ethanol and water have different boiling point. What would be the suitable separation technique for a mixture of both substances?

a)

Distillation

b)

Chromatography paper

c)

Sieving

108.

You want to separate the components of a felt tip pen. What is the suitable separation technique?

a)

distillation

b)

chromatography paper

c)

decanting

d)

sieving

109.

Sulphur is not soluble in water. If, accidentally, some sulphur drops into a glass of water. Which separation technique would you use to separate it from the water?

a)

by decanting

b)

by filtering

c)

by crystallization

d)

by sieving

110.

What is the physical property on which fractional distillation depends?

a)

different boiling points

b)

different melting points

c)

different solubilities

d)

different densities

111.

Which of the following is made up of two or more types of atoms chemically combined together?

a)

elements

b)

compounds

c)

mixtures

d)

solids

112.

What type of mixture does this diagram represent?

a)

Homogeneous

b)

Heterogeneous

113.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
114.

This separation method is called...

a)

Magnetism

b)

Filtration

c)

Distillation

d)

Evaporation

115.

Identify the substance in box B.

a)

element

b)

compund

c)

mixture

116.

Identify the substance in box D.

a)

element

b)

compound

c)

mixture

117.

Identify the substance in box Y.

a)

element

b)

compound

c)

mixture

118.

Identify the substance in box W.

a)

element

b)

compound

c)

mixture

119.

Identify this substance.

a)

element

b)

compound

c)

mixture

120.

Identify this substance.

a)

element

b)

compound

c)

mixture

121.

Label part B

a)

Thermometer

b)

Fractionating column

c)

Condenser

d)

Round bottom flask

122.
In the distillation apparatus shown, what are the parts labelled A and B?
a)
A = funnel, B = thermometer
b)
A = thermometer, B = funnel
c)
A = condenser, B = flask
d)
A = condenser, B = thermometer
123.

instrument used to transfer liquids or fine-grained materials into containers with small openings. Also used for filtration

a)

pipette

b)

funnel

c)

beaker

124.

a narrow-necked glass container, typically conical or spherical, used in a laboratory to hold reagents or samples

a)

Beaker

b)

graduated cylinder

c)

Erlenmeyer Flask

125.
a)

evaporating dish

b)

watch glass

c)

mortar and pestle

d)

funnel

126.
a)

evaporation

b)

watch glass

c)

mortar and pestle

d)

funnel

127.
a)

crucible tongs

b)

beaker tongs

c)

forceps

d)

tweezers

128.
a)
hot plate
b)
flame thrower
c)
heater
d)
bunsen burner
129.
a)
crucible and cover
b)
cup and lid
c)
clay triangle
d)
evaporating dish
130.
a)
watch glass
b)
crucible 
c)
clay triangle
d)
evaporating dish
131.
a)

iron ring

b)

ring stand

c)

face mask

d)

Bunsen burner stand

132.
a)
ring stand
b)
utility clamp
c)
buret clamp
d)
iron ring
133.
a)
glass lens
b)
watch glass
c)
evaporating dish
d)
pestle
134.
a)
wire mesh
b)
wire gauze
c)
wire fence
d)
hot mitt
135.

instrument for measuring precise fluid volumes

a)

graduated cylinder

b)

beaker

c)

Erlenmeyer Flask

136.

What is the purpose of this lab equipment?

a)

to hold misbehaving students

b)

to capture chemical vapor and fumes

c)

to perform all lab experiments

d)

to measure the mass of a solid

137.

What is the purpose of this lab equipment?

a)

to wash chemicals off of a persons body or out of their eyes

b)

to extinguish a fire

c)

to shut off the gas supply in the lab

d)

to pull the lever and see what happens

138.
Identify the following lab equipment
a)
Test tube rack
b)
Magnifying glass
c)
Petri dish
d)
Funnel
139.

Name this item

a)

ring stand

b)

watch glass

c)

buret

d)

spatula

140.

What is used to measure (but not precise), heat, and mix large amounts of liquids?

a)

beaker

b)

flask

c)

test tube

d)

graduated cylinder

141.

Which method is this a picture of?

a)

Filtration

b)

Evaporation

c)

Distillation

d)

Chromatography

142.
The diagram shows the apparatus for separating soil and water. What are the labelled parts?
a)
A = distillate, B = filtrate
b)
A = filtrate, B = residue
c)
A = residue, B = filtrate
d)
A = residue, B = distillate

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