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Unit 1

Total questions: 104

Worksheet time: 3hrs 56mins

Name
Class
Date
1.

How many significant figures are there in 1008 grams?

a)

1

b)

2

c)

3

d)

4

2.

How many significant figures are there in 0.0054 grams?

a)

2

b)

3

c)

4

d)

5

3.

How many significant figures are there in 0.020 meters?

a)

1

b)

2

c)

3

d)

4

4.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
5.

What is 78.5 rounded to one significant figure?

a)

8

b)

70

c)

79

d)

80

6.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

7.

Round 1047.78 to three significant figures.

a)

104

b)

105

c)

1050

d)

1050.00

8.

What is 375.6523 to four significant figures.

a)

375.0

b)

375.00

c)

375.7

d)

375.6

9.

Round 345 000 to 1 s.f

a)

400 000

b)

3

c)

300 000

d)

350 000

10.

Round 2095 to 2 s.f

a)

21

b)

2000

c)

2100

d)

3000

11.

Round 0.000019 to 1 s.f

a)

0.000020

b)

0.00001

c)

0.00002

d)

0.0002

12.

Round 1.08945 to 3 s.f

a)

1.089

b)

1.090

c)

1.09

d)

1.08

13.

Round off 35.089 to 1 significant figures.

a)

4

b)

30

c)

40

d)

40.000

14.

Round off 1.03028 to 4 significant figures.

a)

1.030

b)

1.0302

c)

1.03000

d)

1.03020

15.

Round off 96.011 to 3 significant figures.

a)

90

b)

96

c)

96.0

d)

96.000

16.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
17.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
18.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
19.

What is 78.5 rounded to one significant figure?

a)

79

b)

8

c)

78

d)

80

20.

Round 1289 to three significant figures

a)

1290

b)

130

c)

1300

d)

129

21.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
22.

How many significant figures does 1.90 have?

a)

3

b)

2

c)

4

d)

1

23.
Express 23400 in proper scientific notation. 
a)
2.34 x 104
b)
2.3 x 103
c)
2.30 x 105
d)
2.34 x 103
24.
The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?
a)
1.54 x 1012 m
b)
1.54 x 10-12 m
c)
1.54 x 1010 m
d)
1.54 x 10-10 m
25.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
26.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
27.
Which of the following measurements contains two significant figures?
a)
0.00400 L
b)
0.00404 L
c)
0.00044 L
d)
0.00440 L
28.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
29.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
d)
437,560
30.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
31.
How would you write 0.0005 in scientific notation?
a)
50 x 105
b)
5 x 10-4
c)
5 x 103
d)
0.5 x 103
32.
Express the following quantities in scientific notation:  5800 m
a)
5.8 x 103 m
b)
58.00 x 103 m
c)
5800 x 101 m
d)
5.8 x 104 m
33.
0.000 000 45 kg
a)
45 x 106 kg
b)
4.5 x 10-7 kg
c)
0.45 x 10-6 kg
d)
4.5 x 10-6 kg
34.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
35.
How many Significant Figures in the number below?
4.56 x 103
a)
5
b)
4
c)
6
d)
3
36.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

37.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

38.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

39.

What is 7.555 rounded to two significant figures?

a)

7.6

b)

7.5

c)

70

d)

76

e)

7.60

40.
Round 52689 to 3 significant figures.
a)
526
b)
527
c)
52600
d)
52700
41.
Round 0.00258954 to 4 significant figures.
a)
0.0025
b)
0.002589
c)
0.002580
d)
0.002590
42.
Round 1235 to 2 significant figures.
a)
12
b)
1200
c)
1200.
d)
1200.00
43.

Round the following value to one significant figure...


8291

a)

8000

b)

9000

c)

7000

d)

8300

44.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

45.

Round 509.96 to 4 significant figures

a)

509.9

b)

509.0

c)

510.0

d)

510

46.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

e)

1

47.

Round 509.96 to 4 significant figures

a)

509.9

b)

509.0

c)

510.0

d)

510

48.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

49.

What is 375.6523 to four significant figures?

a)

375.0

b)

375.00

c)

375.7

d)

375.6

50.

Round 1047.78 to three significant figures.

a)

104

b)

105

c)

1050

d)

1050.00

51.

Round 1099 to three significant figures.

a)

1.10 x 103

b)

101

c)

1010

d)

1,000

e)

1100

52.

What is 7.555 rounded to two significant figures?

a)

7.6

b)

7.5

c)

70

d)

76

e)

7.60

53.

Round the following value to one significant figure...


15

a)

10

b)

20

c)

100

d)

2

54.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
55.
Round 7256.320004 to 8 significant figures.
a)
7256.3200
b)
7256.0000
c)
72563200
d)
72560000
56.

Which of the following is a test tube?

a)

A

b)

B

c)

C

d)

D

57.

Which piece of apparatus would be used for measuring a volume of liquid?

a)

A

b)

B

c)

C

d)

D

58.

Which piece of equipment would be used to heat a small quantity of liquid?

a)

A

b)

B

c)

C

d)

D

59.

A Bunsen burner is used to heat substances in the lab. What symbol is used to show a Bunsen burner in a diagram?

a)

A simplified outline of the burner

b)

The word HEAT

c)

An arrow pointing up

d)

An arrow pointing up with the word HEAT below it

60.

Which list below, shows the normal pieces of equipment that are used with a Bunsen burner?

a)

Heatproof mat and tripod

b)

Tripod and gauze

c)

Heatproof mat, tripod and gauze

d)

Heatproof mat, tripod, gauze and thermometer

61.

What is always used with a filter funnel?

a)

A filter paper

b)

A test tube

c)

A beaker

d)

A conical flask

62.

The diagram below shows a typical filtration apparatus. Which piece the equipment would NOT normally be shown when you draw a diagram of the set up?

a)

Beaker

b)

Filter paper

c)

Filter funnel

d)

Retort stand

63.

What is the name of the piece of equipment used to condense a gas into a liquid?

a)

Condenser

b)

Liebig condenser

c)

Condensing tube

d)

Delivery tube

64.

The diagram shows a liquid being evaporated. What piece of equipment is not shown that should be there?

a)

Gas tap

b)

Heatproof mat

c)

Thermometer

d)

Fire extinguisher

65.

Drawing scientific equipment is an important skill. Which of the following pieces of stationery should not be used when drawing a scientific diagram?

a)

Pen

b)

Pencil

c)

Ruler

d)

Rubber

66.

Where should the combustible materials be place?

a)

By the flame

b)

On top of the flame

c)

Away from open flames

d)

In a brown paper bag

67.

Where should I throw paper or solids?

a)

In the trash or proper waste container

b)

Sink

c)

Backpack

d)

Locker

68.

Some chemicals are very …………………, so put on safety gloves on your hands.

(a)  

69.

Which of the following is a correct statement about wearing personal protective equipment such as goggles, gloves and aprons?

a)

wearing goggles is optional if you wear contacts or glasses.

b)

wearing protective equipment is optional.

c)

wear protective equipment when required by the activity.

d)

aprons are not required when wearing jeans and long sleeves.

70.

Someone caught their sleeve on fire, what should you do first?

a)

Spray with fire extinguisher

b)

Smoother with fire blanket

c)

Call the office

d)

Put it under the eyewash station

71.
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.
72.
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.
73.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
74.

3.       What is the most critical hazard resulted from a broken thermometer?

4 lines
75.

4. What is one of the short-term effects of being exposed to the mercury spill?

a)

Fever

b)

Coughing

c)

Tremors

d)

Fatigue

76.

6. Which is one of the long-term effects of being exposed to mercury?

a)

Deteriorates nervous system

b)

Skin issues

c)

Headache

d)

Memory Loss

77.

5. What you should do if you accidentally break a thermometer?

a)

Seek assistance from the cleaning staff to help you.

b)

Call your teacher for further action to be taken. Identify and secure the area with the broken thermometer and potentially mercury spills.

c)

Clean up the broken thermometer yourself and discard the trash in the designated bin.

d)

Ask help from the maintenance staffs to remove the broken thermometer from the lab.

78.

6.     Name 4 Safety gears which shall be donned / worn while performing science experiment.

4 lines
79.

7. What you should do if you accidentally have chemicals splashed into your eyes.

a)

Relax and have a sit. No rush to do anything.

b)

Wipe your eyes with a paper towel until the splash is not visible anymore.

c)

Call your in-house nurse right away to get help!

d)

Immediately flush your eyes for not less than 15 minutes at the nearest eyewash station.

80.

8. When you should use the emergency shower in the science lab?

a)

When you did not take a shower in the morning.

b)

When your eyes have been splashed with chemicals.

c)

When your skin has been exposed to hazardous chemicals.

d)

Whenever you feel like having a shower that day.

81.

9. Name 3 Science lab's rules and regulations which shall be followed?

4 lines
82.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
83.

Which best describes the target?

a)

Precise, but not accurate

b)

Accurate but not precise

c)

Precise and accurate

d)

Neither accurate nor precise

84.

Which student is the most ACCURATE?

a)

A

b)

B

c)

C

85.

How should this measurement be recorded in one's lab notebook?

a)

67 mL

b)

67.0 mL

c)

67.00 mL

d)

73.0 mL

86.

How should the volume in this graduated cylinder be recorded?

a)

44 mL

b)

44.0 mL

c)

43 mL

d)

43.0 mL

87.

How should the volume of liquid in this graduated cylinder be recorded?

a)

26.0 mL

b)

26 mL

c)

26.00 mL

d)

26.000 mL

88.

How should the volume of graduated cylinder be recorded?

a)

36.0 mL

b)

36 mL

c)

37.5 mL

d)

35 mL

89.

this is a ...

a)

erlenmeyer flask

b)

bunsen burner

c)

beaker

d)

test tube

90.

What should you do if you break glass in the lab?

a)

Tell the teacher immediately

b)

Sweep up the glass yourself

c)

Pick up the glass with your hands.

d)

Ignore it; the teacher will clean it up when she sees it later.

91.

this is a picture of ...

a)

forceps

b)

clamp

c)

tweezers

d)

Thermometer

92.

which of the following is used to ACCURATELY measure the volume of a liquid?

a)

test tube

b)

beaker

c)

graduated cylinder

d)

funnel

93.

The following safety item should be used if a PERSON is on fire

a)

fire blanket

b)

safety shower

c)

fire extinguisher

d)

goggles

94.

Your eyes are very important organs in your body and need protection. Identify the item shown in the above photo.

(a)  

95.

The piece of apparatus shown in the diagram is a

a)

conical flask

b)

beaker

c)

funnel

d)

pipette

96.

Which one of the following pieces of apparatus is the odd one out?

a)
b)
c)
d)
97.

A wire gauze is used to support a beaker while heating water in the beaker during an experiment.

Which one of the following is a wire gauze?

a)
b)
c)
d)
98.

The stainless steel instrument shown is used for measuring out small amounts of solid substances like powders.


This instrument is called a (a)  

99.

The apparatus shown is called a (a)  

100.

The device shown in the picture measures the mass of an object or substance.

It is called a(n) (a)   balance.

101.

The device shown may be used to measure the volume of a liquid and is known as a

a)

flask

b)

pipette

c)

dropper

d)

syringe

102.

The instrument shown is used to look at very small objects.

It is called a (a)  

103.

The apparatus shown is used to grind up a solid into a fine powder.

It is known as a (a)   and mortar.

104.

Identify the following piece of laboratory equipment.

a)

Test tube holder

b)

Clamp

c)

Tweezers

d)

Test tube rack

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