Answer Key
Name: _________________________________________________________________________________
Seventh Grade Science Teacher: ____________________________________________________________
Page 1
Answer Key
Different tools in the SI system all measure to different precisions. It doesn’t matter what tool you are using as
long as you remember to always measure to the smallest written lines on that tool PLUS one estimated digit
for the empty space between the smallest lines. Below are several different SI measurement tools. Read each
tool and record the measurement to the precision of the instrument PLUS one estimated digit.
1.) Record the length of the marker below in centimeters (cm).
1
2
3
4
5
6
7
8
9
11.3 cm
11
10
12
13
2.) Record the length of the Model Rocket below in centimeters (cm).
32 cm
20
30
1
3.) Record the width of the SD Memory Card in centimeters (cm).
2.49 cm
1
2
3
4
5
6
7
8
9
10
11
12
13
Page 11
Section 3: Measuring Distance with a meter stick
Answer Key
Name: ______________________
Pd: _____ Date: _______
Score
Learning to read a meter stick
Directions: Using your knowledge of SI rulers, write the correct measurement for each numbered
location on the rulers below. (For 1- 8 measure in cm [Don’t forget your decimal point])
1.)
___
dm
0 . ___
9 ___
1
___
cm
mm
cm
BG
90
0
#8
#1
91
1
2.)
___
9
dm
3.)
___
9
dm
___
3 .___
3 ___0
cm
mm
___
7 . ___
8 ___
3
cm
mm
cm
92
BG
2
cm
BG
93
3
#2
#4
94
4.)
___
dm
___
3 .___
6 ___1
cm
mm
cm
4
BG
95
#6
5
5.)
___
dm
6 . ___
2 ___
0
___
cm
mm
cm
BG
6
6.)
___
9
dm
___
5 . ___
0 ___
5
cm
mm
#5
cm
BG
96
97
7
#3
7.)
___
dm
9 .___
4 ___9
___
cm
mm
cm
98
8
BG
99
9
8.)
9
___
dm
0 . ___
6 ___
9
___
cm
mm
cm
#7
BG
Page 12
Answer Key
Name __________________________________________________
Pd______ Date ________________
Score
Let’s Practice measuring distance using the SI System
1) Complete the list below of SI system units of length from largest to smallest:
_ _ _ _ _ _ _ _
km
hm dam
m
dm
cm mm
Best
Guess
Guess
2) Use your Metric Ruler to measure the following lines in the label listed at the right of each line. Write the answer on each line.
17.55 cm cm
20.85cm
7.30 cm
cm
cm
192.0 mm mm
20.0 mm
mm
146.5 mm mm
0.1723 m m
0.1540 m m
0.0645 m m
Page 13
Answer Key
3) Measure the total distance of each bent line in the label listed at the right of each line. Write the answer for each segment on
each line and then CIRCLE the Total distance.
7.40 cm
cm
5.10 cm
6.10 cm
18.60 cm
1.30 cm
3.10 cm
2.05 cm
4.10 cm
cm
10.55 cm
29.0 mm
183.0 mm
24.0 mm
mm
236.0 mm
63.0 mm
25.5 mm
mm
52.0 mm
140.5 mm
0.0270 m
0.0350 m
0.0240 m
0.0430 m
0.4065 m
0.1010 m
0.0120 m
m
0.0315 m
0.0420 m
0.0365 m
0.0330 m
0.0215 m
Page 14
C
Answer Key
Name: __________________________________
Pd: ______ Date: _________
Measuring Length Practice
1) Measure the longest side of this paper in km.
A
0 . 0
km
hm
0
0
2
dam
m
dm
8
0
cm
mm
1
7
cm
mm
0
BG
2) Measure the shortest side of this paper in mm
2
km
hm
dam
m
dm
. 0
BG
3) Measure on this page the distance longest side of the Title box in cm
km
hm
dam
4) Measure the height of this “M” in dm
m
1
6
dm
cm
0 . 0
km
hm
dam
m
dm
cm
. 8
mm
0
BG
2
5
mm
BG
B
5) Measure the following line in m _______________________________________
0 .
km
hm
dam
m
0
dm
8
2
0
cm
mm
BG
Measure the distance between the following DOTS on this page. (Edge of the DOT to the
Edge of the DOT).
18.70 cm
6) Measure the distance from the DOT “A” to DOT “B” in centimeters
7) Measure the distance from the DOT “C” to DOT “D” in meters
0.2825 m
8) Measure the distance from the DOT “A” to DOT “D” in kilometers
0.0002040 km
9) Measure the distance from the DOT “A” to DOT “C” in millimeters
10) Measure the distance from the DOT “B” to DOT “D” in meter
0.2160 m
11) Measure the distance from the DOT “B” to DOT “C” in centimeters
D
168.0 mm
9.75 cm
Page 15
Answer Key
Name: ___________________________________
Pd: _____ Date: _________
Score
No other city can Measure up to Pittsburgh’s Firsts
Directions: Using a metric ruler and your knowledge of how to measure length, following
the directions below to discover some of the things that Pittsburgh was first in. for every
question always start at the dot in the “START HERE” box (ONLY START HERE FOR
NUMBER ONE OF EACH QUESTION). Then using the color indicated, draw the path that
was used to find the answer. (You may first use a pencil and then trace over it with the color later.)
1. The world’s first theater devoted to motion pictures, opened on
Smithfield Street in Pittsburgh in 1905. What was its name?
RED
(1) Measure DOWN 13.50cm, then LEFT 4.60 cm (2) Measure UP 12.50 cm, then RIGHT 12.45 cm (3)
Measure DOWN 0.85 cm, then LEFT 10.00 cm (4) Measure LEFT 5.25 cm, then DOWN 11.55 cm (5) Measure
RIGHT 2.40 cm, then UP 4.95 cm (6) Measure UP 4.65 cm, then RIGHT 0.95 cm (7) Measure DOWN 6.30 cm,
then LEFT 0.55 cm (8) Measure UP 6.90 cm, then RIGHT 4.80 cm (9) Measure DOWN 5.25 cm, then LEFT
5.25 cm (10) Measure DOWN 1.60 cm, then RIGHT 0.30 cm (11) Measure DOWN 3.45 cm
N
I ____
C ____
K ____
E ____
L ____
O ____
D ____E ____
O ____
N
____ ____
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
2. What was the name of the world’s first true baseball stadium was that was built in
Pittsburgh in 1909?
BLUE
(1) Measure RIGHT 3.35cm, then DOWN 2.10 cm (2) Measure DOWN 8.00 cm, then LEFT 7.95 cm (3)
Measure UP 6.10 cm, then RIGHT 11.55 cm (4) Measure DOWN 4.45 cm, then LEFT 7.00 cm (5) Measure
LEFT 4.90 cm (6) Measure DOWN 5.20 cm, then RIGHT 12.95 cm (7) Measure UP 7.80 cm, then LEFT 4.55
cm (8) Measure UP 3.80cm (9) Measure UP 1.05 cm, then RIGHT 4.55 cm (10) Measure DOWN 7.45 cm,
then LEFT 12.80 cm (11) Measure RIGHT 0.90 cm, then UP 4.65 cm (12) Measure RIGHT 4.30 cm, then UP
0.60 cm
F____ O
R ____
B ____
E ____
S ____ ____
F ____
I ____
E ____
L ____
D
____ ____
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
#12
GREEN
3. Game 4 of the 1971 World Series in Pittsburgh was the first World Series ________.
(1) Measure DOWN 13.40 cm, then LEFT 4.60 cm (2) Measure UP 12.50 cm, then RIGHT 12.55 cm (3)
Measure DOWN 2.55 cm, then RIGHT 2.95 cm (4) Measure DOWN 9.65 cm, then LEFT 5.30 cm (5) Measure
LEFT 7.35 cm, then UP 7.65 cm (6) Measure RIGHT 11.00 cm, then DOWN 0.25 cm (7) Measure RIGHT 1.60
cm, then UP 2.30 cm (8) Measure RIGHT 2.65 cm, then DOWN 6.50 cm (9) Measure DOWN 0.60 cm, then
LEFT 9.25 cm (10) Measure LEFT 3.30 cm, then UP 2.25 cm
N I G H T
G A M E
____ ____ ____ ____ ____ ____ ____ ____ ____ ____
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
Page 16
Answer Key
.
.
Z
.
P
START
HERE
.
J
.
C
.
F
.
D
.
L
.
T
.
G
.
Y
.
U
.
E
.
O
.
Q
.
K
.
N
.
I
.
R
.
Space
.
B
.
M
.
W
.
A
.
X
.
H
.
V
.
S
Page 17
Name: _________________________________
Answer Key
_______
Period: ____ Date:
Score
Measuring Volumes
Directions: Determine the volume of the following objects. Make sure you show your work.
Height = 5.50 cm
(1) Volume = 242.55 cm3
Width = 3.50 cm
V=LxWxH
V = 12.60 cm x 3.50 cm x 5.50 cm
Length = 12.60 cm
Height = 3.14 cm
(2) Volume = 132.37 cm3
Width = 2.75 cm
V=LxWxH
V = 15.33 cm x 2.75 cm x 3.14 cm
Length = 15.33 cm
R = 2.86 cm
(3) Volume = 48.80 cm3
H = 1.90 cm
V = π R2 x H
V = 3.14 x (2.86 cm)2 x 1.90 cm
R = 0.54 cm
(4) Volume = 5.61 cm3
H = 6.13 cm
V = π R2 x H
V = 3.14 x (0.54 cm)2 x 6.13 cm
Page 21
Answer Key
(5)
(6)
30
30
20
20
10
10
Answer all of the following questions
about this Graduated Cylinder?
Answer all of the following questions
about this Graduated Cylinder?
35 ml
(a) Maximum Capacity: _________________
35 ml
(a) Maximum Capacity: _________________
1 ml
(b) Value of each unnumbered line: _______
ml
(b) Value of each unnumbered line: 1
_______
11.9 ml
(C) Volume of the gray liquid: ____________
21.9 ml
(C) Volume of the gray liquid: ____________
(7)
(6)
3
300
2
200
1
100
Answer all of the following questions
about this Graduated Cylinder?
Answer all of the following questions
about this Graduated Cylinder?
3.5 ml
(a) Maximum Capacity: _________________
350 ml
(a) Maximum Capacity: _________________
(b) Value of each unnumbered line: _______
0.1 ml
(b) Value of each unnumbered line: _______
10 ml
(C) Volume of the gray liquid: ____________
2.40 ml
(C) Volume of the gray liquid: ____________
67 ml
Page 22