Glossary
View All Words
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
#
A
active
B
C
cinder cone
composite
D
dormant
E
Earth's crust
extinct
F
G
H
I
J
K
L
M
N
nutrient
O
P
Q
R
rupture
S
shield
T
U
V
W
X
Y
Z
#
Earth's crust
The outer most shell of Earth.
Select this then click anywhere in the book to start reading text
Speak the current selection
Stops speech playback
Double-click a word in the book and click this icon to translate the word into Spanish
Glossary