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WorksheetsIntroduction Prove What You Know
Total questions: 35
Worksheet time: 31mins
Name
Class
Date
1.
Write 7.113 x 107 in standard form.
a)
71,130,00
b)
7,113,000
c)
0.0000007113
d)
7,113
2.
Write 0.00000707 in scientific notation.
a)
7.07 x 10-6
b)
7.07 x 106
c)
707 x 108
d)
707 x 10-8
3.
Write 2.08 x 102 in standard form.
a)
208
b)
0.0208
c)
20,800
d)
0.208
4.
Write 7.8 x 10-3 in standard form.
a)
0.0078
b)
7,800
c)
78
d)
0.078
5.
Write 8.73 x 10-4 in standard form.
a)
0.000873
b)
0.0873
c)
87,300
d)
8,730
6.
Write 6,700 in scientific notation.
a)
6.7 x 103
b)
6.7 x10-3
c)
67 x 102
d)
67 x 10-2
7.
Arrange the numbers from least to greatest:
216,000,000 ; 2.2 x 103 ; 3.1 x 107 ; 310,000
216,000,000 ; 2.2 x 103 ; 3.1 x 107 ; 310,000
a)
2.2 x 103 ; 310,000; 3.1 x 107 ; 216,000,000
b)
310,000 ; 2.2 x 103 ; 3.1 x 107; 216,000,000
c)
3.1 x 107 ; 310,000; 2.2 x 103; 216,000,000
d)
2.2 x 103 ; 3.1 x 107 ; 310,000 ; 216,000,000
8.
The table shows the mass in grams of one atom of each of several elements. List the elements in order from the least mass to greatest mass per atom.
a)
hydrogen, carbon, oxygen, silver, gold
b)
hydrogen, oxygen, gold, siver, carbon
c)
carbon, oxygen, silver, gold, hydrogen
d)
gold, oxygen, carbon, silver, hydrogen
9.
When are zeroes significant?
a)
After any non-zero #.
b)
Before non-zero #s.
c)
Anytime there is a decimal point.
d)
Trailing zeros in a number with a decimal point
10.
Which measurement contains 3 sig figs?
a)
200 mL
b)
20.0 mL
c)
0.02 mL
d)
0.020mL
11.
How many significant figures are in the measurement: 2.70 x102g?
a)
1
b)
2
c)
3
d)
4
12.
How many significant figures are in the measurement: 387g?
a)
1
b)
22
c)
3
d)
4
13.
How many significant figures are in the measurement: 72.20g?
a)
2
b)
4
14.
How many significant figures are in the measurement: 70 g?
a)
1
b)
4
15.
How many significant figures are in the measurement: 0.0070g?
a)
1
b)
2
c)
3
d)
4
16.
How many significant figures are in the measurement: 0.045g?
a)
2
b)
3
17.
How many significant figures are in the measurement: 70.0g?
a)
1
b)
3
18.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
19.
Is 4,000 mg greater than, less than, or equal to 4 g?
a)
greater than
b)
less than
c)
equal to
20.
Is 55,000 mg greater than, less than, or equal to 5 kg?
a)
greater than
b)
equal to
c)
less than
21.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
22.
5,000 mg = ____ g
a)
50
b)
5
c)
500
d)
5,000
23.
Is 11 g greater than, less than, or equal to 1,100 mg?
a)
greater than
b)
less than
c)
equal to
24.
Is 20 g greater than, less than, or equal to 2 kg?
a)
greater than
b)
less than
c)
equal to
25.
648 g = ____ mg
a)
6,480
b)
64,800
c)
648,000
d)
64.8
26.
285 kg = ____ g
a)
285,000
b)
285
c)
2,850
d)
28,500
27.
15,000 g = ____ kg
a)
1.5
b)
150
c)
1,500
d)
15
28.
You should never ______ chemicals in the lab.
a)
taste
b)
touch
c)
smell
d)
all of the above
29.
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
30.
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.
31.
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.
32.
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.
33.
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.
34.
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.
35.
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.
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