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Intro to the Lab Yr9

Total questions: 75

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

Why is it important to know the names and appearance of lab equipment before doing laboratory work?

a)

So you will score higher on the lab test.

b)

So you can quickly obtain your laboratory supplies before lab.

c)

So you can follow the lab instructions clearly.

d)

So you can make sure everything has been cleaned before beginning the lab procedure.

2.

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 about the room.

c)

Splash large amounts of water onto the spill.

d)

Immediately ask to go to the restroom.

3.

I can perform an experiment of my own when:

a)

When I am sure it is safe to do so.

b)

Whenever I want to.

c)

Only with permission from the teacher

d)

Never.

4.

Keeping the work area neat and clean is important because:A. Mr O is a neat-freakB. I won't lose my supplies in the clutter.C. It keeps the room from looking messy.D. It helps prevent accidents. A. B. C. D.

a)

My teacher is a neatness freak

b)

I won't lose my supplies in the clutter.

c)

It keeps the room from looking messy.

d)

It helps prevent accidents.

5.

If you are not sure what to do during a lab activity:

a)

Guess.

b)

Change lab partners.

c)

Ask my teacher.

d)

Just sit quietly and do nothing.

6.

A spill can cause an accident. Clean up a spill:

a)

When you have time.

b)

After the teacher has told you 3 or more times.

c)

At the end of the lab.

d)

Immediately.

7.

Safety glasses must be worn when using:

a)

Bunsen burners

b)

Glassware

c)

Chemicals

d)

all of the time

8.

If you see something in the classroom or laboratory that is dangerous, tell the teacher

a)

When you have time

b)

At once

c)

After class

d)

After school

9.

The most important thing in laboratory experiments is:

a)

Getting done first.

b)

Getting the answer right.

c)

Safety.

d)

Penmanship.

10.
True or False: Long hair MUST be tied back during a laboratory investigation.
a)
True
b)
False
11.
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
12.

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

a)

to avoid eye strain

b)

to improve your vision

c)

so that you look super cool

d)

any time chemicals, heat or glassware are used

13.

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

a)

skip it and move on

b)

ask your teacher or classmates

c)

try different things until something works

d)

figure it out as you do the lab

14.
Part of lab safety includes reading the lab procedure...
a)
before doing the lab
b)
while doing the lab
c)
after doing the lab
d)
only if you think you really need it
15.

What does this symbol indicate?

a)

Corrosive substances

b)

Wash your hands.

c)

Wear appropriate gloves.

d)

Bacteria are present.

16.
a)
Poison/Toxic
b)
Bio Hazard
c)
Radioactive
d)
Corrosive
17.

What do you think this symbol means?

a)

Emergency eye wash station

b)

Safety shower

c)

Eye positive sprinkler system

d)

Eye brush station

18.

Identify the Image

a)

Radioactive

b)

Flammable

c)

Biological hazard

d)

Toxic

19.

What does this safety symbol mean?

a)

flammable

b)

oxidising

c)

hot

d)

explosive

20.

What does this safety symbol mean?

a)

cross

b)

harmful / irritant

c)

sharp

d)

chemical

21.

What do you think this symbol means?

a)

Emergency eye wash station

b)

Safety shower

c)

Transporter beam system

d)

Keep area dry

22.
Which part of the Bunsen flame is the hottest?
a)
A
b)
B
c)
C
d)
D
23.

When the air hole is closed, what color is the flame?

a)

Blue/Yellow/Orange

b)

Dark and Light Blue

24.

The gas should be turned on ____________ lighting the match.

a)

Before

b)

After

25.
When is it OK to eat or drink in the lab?
a)
Always
b)
Never
26.
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
27.

First steps to using a bunsen burner:

a)

Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is closed

b)

Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is open

c)

Place on heat proof mat, connect gas hose to a gas tap and light the bunsen burner

d)

Place on the bench, connect gas hose to a gas tap and make sure the air hole is open

28.

A mixture of __________ and __________ burn at the top of the barrel to produce a flame

a)

Air, carbon dioxide

b)

Gas, carbon dioxide

c)

Gas, air

d)

Air, helium

29.

When you first light a bunsen burner, the flame should be:

a)

Yellow

b)

Blue

c)

Either

d)

Non existent. You shouldn't be using a bunsen burner to light things in the lab

30.

When heating a test tube you.....

a)

Wear safety goggles, use a test tube holder and hold the test tube away from you

b)

Wear safety goggles, use tongs and hold the test tube close to you

c)

Wear safety goggles, use a test tube holder and make sure the flame is only yellow

d)

Wear safety goggles, use tongs and hold the test tube away from you

31.

The different parts of a bunsen burner include:

a)

Barrel, collar, air hole, gas hose and base

b)

Barrel, collar, air vent, gase hose and base

c)

Barrel, collar, air vent, gas hose and bottom

d)

Barrel, neck, air hole, gas hose and base

32.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

33.

What is the DEPENDENT variable (effect) in this experiment?


"Does eating breakfast improve test scores?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

34.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

35.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

36.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

37.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

38.

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be the DEPENDENT VARIABLE?

a)

The time it takes for each object to hit the ground.

b)

The size of each object.

c)

The type of object you use.

d)

The height you drop the object from

39.

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

a)

She used different types of seeds/plants.

b)

The plants are in different pots.

c)

She did not plant very many plants.

d)

Seed age might not make a difference.

40.

What is the responding variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we are keeping the same to make the experiment fair

41.

What are the constant variables?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

42.

Scientific Question: Does being tardy impact test scores?

What is the manipulated variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

43.

The following is used to measure

a)

length

b)

volume

c)

mass

44.

What is the volume of water in this graduated cylinder in ml?

(a)  

45.

What is the volume of water in this graduated cylinder in ml?

(a)  

46.

What is the volume of water in this graduated cylinder in ml?

(a)  

47.

What is the volume of water in this graduated cylinder in ml?

(a)  

48.

What is the volume of water in this graduated cylinder in ml?

(a)  

49.

What is the volume of water in this graduated cylinder in ml?

(a)  

50.

What is the volume of water in this graduated cylinder in ml?

(a)  

51.

What is the volume of water in this graduated cylinder in ml?

(a)  

52.

What is the volume of water in this graduated cylinder in ml?

(a)  

53.

What is the volume of water in this graduated cylinder in ml?

(a)  

54.

What is the volume of water in this graduated cylinder in ml?

(a)  

55.

What is the volume of water in this graduated cylinder in ml?

(a)  

56.

What is the volume of water in this graduated cylinder in ml?

(a)  

57.

What is the volume of water in this graduated cylinder in ml?

(a)  

58.
What is the volume of the liquid in this graduated cylinder?
a)
19 mL 
b)
35 mL 
c)
24 mL 
d)
1.9 mL
59.
What is the scale on this graduated cylinder?
a)
.1 mL per line
b)
.2 mL per line
c)
.5 mL per line
d)
1 mL per line
60.
What is the volume of the liquid in this graduated cylinder?
a)
8.5 mL 
b)
7.5 mL 
c)
8 mL 
d)
.1 mL
61.
What is the scale on this graduated cylinder?
a)
.1 mL per line
b)
.2 mL per line
c)
.5 mL per line
d)
1 mL per line
62.
What is the volume of the liquid in this graduated cylinder?
a)
43 mL 
b)
30.7 mL 
c)
37 mL 
d)
38 mL
63.
What is the volume of the liquid in this graduated cylinder?
a)
44 mL 
b)
30.6 mL 
c)
37 mL 
d)
36 mL
64.
What is the volume of the liquid in this graduated cylinder?
a)
8.2 mL 
b)
8.02 mL 
c)
82 mL 
d)
9.8 mL
65.
What is the volume of the liquid in this graduated cylinder?
a)
8.6 mL 
b)
86 mL 
c)
8.06 mL 
d)
.86 mL
66.
What is the volume of the liquid in this graduated cylinder?
a)
1.5 mL 
b)
15 mL 
c)
1.05 mL 
d)
.15 mL
67.
What is the volume of the liquid in this graduated cylinder?
a)
21 mL 
b)
2.1 mL 
c)
.21 mL 
d)
2.01 mL
68.
Which is NOT a step for reading a graduated cylinder properly?
a)
Make sure the cylinder sits in the stand vertically.
b)
Be sure to hold it up to eye-level when reading.
c)
Read the water's volume by the bottom of the meniscus.
d)
Know the value of the scale for the sub-graduates.
69.
What is the volume of the water in this graduated cylinder?
a)
7.6 mL
b)
7.2 mL
c)
6.6 mL
d)
6.8 mL
70.
What is the volume of the water in this graduated cylinder?
a)
21 mL
b)
23.5 mL
c)
22 mL
d)
21.5 mL
71.
What is the volume of the water in this graduated cylinder?
a)
33 mL
b)
34 mL
c)
35 mL
d)
36 mL
72.
Where do we read the level of liquid?
a)
The highest point the liquid touches
b)
The bottom of the meniscus
c)
Half way between, we make an educated guess and round it
d)
Somewhere about there
73.

Which of the following best describes a line graph?

a)

A graph that uses bars to represent data.

b)

A graph that uses points connected by lines to show changes over time.

c)

A graph that uses circles to represent data.

74.

What is the primary use of a bar graph?

a)

To display the relationship between two variables.

b)

To compare quantities across different categories.

c)

To show trends over time.

75.

When would you choose a line graph over a bar graph?

a)

When you want to compare different categories.

b)

When you want to show data changes over a continuous period.

c)

When you want to display data in a circular format.