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
axis
B
C
D
E
energy
F
G
gravity
H
I
J
K
L
M
N
O
orbit
P
Q
R
rotates
S
solar system
star
T
tilted
U
V
W
X
Y
Z
#
energy
the ability to do work
Source
Illustration 41894111 © Lasse Behnke | Dreamstime.com
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
Illustration 41894111 © Lasse Behnke | Dreamstime.com
Glossary