横向
1
Curved glass that refracts light
3
Molten rock beneath Earth surface
6
Natural satellite of Earth
7
Unit of energy
9
Element found in all living things
10
Solid with repeating atomic pattern
11
Substance with pH below 7
12
Fourth state of matter
纵向
2
Second lightest element
4
Infectious microscopic agent
5
Naturally occurring inorganic solid
8
Chemical element in table salt
13
Unit of power