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WorksheetsCh 1: Intro to Chemistry
Total questions: 52
Worksheet time: 26mins
Name
Class
Date
1.
Matter with a definite composition is a:
a)
substance
b)
matter
c)
mass
d)
model
2.
Chemistry is the study of
a)
matter
b)
the human body
c)
bubble gum
d)
marine biology
3.
Takes up space and has weight.
a)
matter
b)
mass
c)
weight
d)
gravity
4.
The amount of matter in an object is its
a)
gravitational pull
b)
mass
c)
substance
d)
weight
5.
The properties of matter can be
a)
physical only
b)
chemical only
c)
physical and chemical
6.
The Earth's gravitational pull on an object and the amount of matter it consists of is:
a)
mass
b)
weight
c)
matter
7.
A systematic plan for testing ideas.
a)
scientific method
b)
hypothesis
c)
observation
d)
experiment
8.
Gathering and recording information:
a)
observation
b)
hypothesis
c)
conclusion
9.
Characteristics that describe how an object looks, smells, tastes, sounds like, etc.
a)
qualitative data
b)
quantitative data
10.
Characteristics that describe an object's height, weight, age, etc.
a)
qualitative data
b)
quantitative data
11.
A testable prediction
a)
hypothesis
b)
experiment
c)
observation
d)
control
12.
A controlled test of a hypothesis:
a)
experiment
b)
observation
c)
scientific method
d)
conclusion
13.
The group being tested on with a variable.
a)
experimental group
b)
control group
14.
The group NOT being tested on with a variable.
a)
experimental group
b)
control group
15.
Anything affecting the outcome of the experiment is a
a)
variable
b)
theory
c)
scientific law
d)
fact
16.
Variable changed by the experimenter.
a)
independent
b)
dependent
c)
control
17.
This variable changes based on the independent variable.
a)
independent
b)
dependent
c)
control
18.
Judgement based on information gathered during the experiment.
a)
theory
b)
scientific law
c)
conclusion
d)
hypothesis
19.
Description that tell why and is not proven.
a)
theory
b)
scientific law
c)
scientific method
20.
Description that tells what and can be proven.
a)
theory
b)
scientific law
c)
scientific method
21.
A visual, verbal, or math explanation of data
a)
model
b)
mass
c)
matter
d)
hypothesis
22.
Flammable materials, like alcohol, should never be dispensed or used near
a)
an open door
b)
an open flame
c)
another student
d)
a sink
23.
If a laboratory fire erupts, immediately
a)
notify your instructor
b)
run for the fire extinguisher
c)
throw water on the fire
d)
open the windows
24.
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
25.
If you do not understand a direction or part of a lab procedure, you should
a)
skip it and go on to the next part.
b)
ask the instructor before proceeding
c)
try several methods until something works
d)
figure it out as you do the lab
26.
After completing an experiment, all chemical wastes should be
a)
taken home
b)
dumped in the sink
c)
disposed of according to your instructor’s directions
d)
left at your lab station for the next class
27.
You are heating a substance in a test tube. Always point the open end of the tube
a)
away from all people
b)
toward another classmate
c)
toward your lab partner
d)
toward yourself
28.
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
29.
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
30.
Long hair in the laboratory must be
a)
tied back or kept entirely out of the way with a hair band, hairpins, or other confining device
b)
always neatly groomed
c)
held away from the experiment with one hand
d)
cut short
31.
In a laboratory, the following should not be worn.
a)
all of the answers
b)
dangling jewelry
c)
sandals
d)
loose clothing
32.
The following footwear is best in the laboratory.
a)
shoes appropriate for the weather
b)
open-toed shoes
c)
closed-toed shoes
d)
sandals
33.
Horseplay or practical jokes in the laboratory are
a)
okay if you are working alone
b)
not dangerous
c)
okay
d)
always against the rules
34.
If a piece of equipment is not working properly, stop, turn it off, and tell
a)
the science instructor
b)
your best friend in the class
c)
the custodian
d)
your lab partner
35.
If an acid is splashed on your skin, wash at once with
a)
weak base
b)
soap
c)
plenty of water
d)
oil
36.
When you finish working with chemicals, biological specimens, and other lab substances, always
a)
wipe your hands on your clothes
b)
wipe your hands on a towel
c)
wash your hands thoroughly with soap and water
d)
treat your hands with skin lotion
37.
Hot glass looks the same as cold glass.
a)
True
b)
False
38.
Return all unused chemicals to their original containers.
a)
True
b)
False
39.
All chemicals in the lab are to be considered dangerous
a)
True
b)
False
40.
Work areas should be kept clean and tidy
a)
True
b)
False
41.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present
a)
True
b)
False
42.
Never remove chemicals or other equipment from the laboratory.
a)
True
b)
False
43.
Chipped or cracked glassware is okay to use.
a)
True
b)
False
44.
Read all procedures thoroughly before entering the laboratory
a)
True
b)
False
45.
All unauthorized experiments are prohibited.
a)
True
b)
False
46.
Never leave a lit burner unattended.
a)
True
b)
False
47.
It is used in pouring liquid or other substance through a small opening.
a)
Dropper
b)
Spatula
c)
Beaker
d)
Funnel
48.
It is an open tube used to hold small amount of liquid.
a)
Beaker
b)
Graduated cylinder
c)
Test tube
d)
Dropper
49.
It is used to support a container (such as beaker or flask during heating).
a)
Iron ring
b)
Iron stand
c)
Wire gauze
d)
Alcohol lamp
50.
The triple beam balance tool measures what
a)
Mass
b)
Temperature
c)
Volume
d)
Capacity
51.
What is used to measure the volume of liquids more precisely in milliliters?
a)
Beaker
b)
Flask
c)
Graduated Cylinder
d)
Test tubes
52.
What is used to hold test tubes?
a)
Test tube rack
b)
Magnifying glass
c)
Petri dish
d)
Funnel
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