ACID
ALKALI
CORROSIVE
IRRITANT
HAZARD
FLAMMABLE
NEUTRALISATION
WEAK
STRONG
BATTERY
ELECTRODES
ZINC
MERCURY
NICKEL
LEAD
VOLTMETER
MAINS
ENERGY
PH
SCALE
INDICATOR
UNIVERSAL
LITHMUS
N
E
L
E
C
T
R
O
D
E
S
W
C
Z
J
E
N
I
C
K
E
L
I
O
Y
S
O
I
I
Y
U
E
N
E
R
G
Y
R
N
M
R
I
Z
R
Y
T
W
E
A
K
E
I
R
E
R
S
U
I
R
I
R
T
A
T
A
E
I
R
O
T
A
F
N
I
E
A
T
M
T
C
N
C
S
R
H
L
L
C
T
A
L
E
O
I
D
U
I
O
U
A
K
A
B
A
M
I
U
S
I
R
V
N
P
H
Z
A
M
T
N
T
S
C
C
Y
E
G
S
N
E
A
L
M
O
T
U
A
A
S
E
L
M
C
I
O
R
I
A
U
X
L
T
C
Y
E
K
P
V
J
C
D
A
B
L
E
O
I
I
A
P
L
I
T
H
M
U
S
L
A
R
O
O
D
U
N
I
V
E
R
S
A
L
E
O
B
R
N
