横向
1
Biological catalyst
3
Particle of light
4
Ball of burning gas in space
6
Chemical element in table salt
7
Curved glass that refracts light
8
Amplified beam of light
10
Unit of heredity
纵向
2
Naturally occurring inorganic solid
3
Positive particle in nucleus
5
Smallest unit of an element
9
Tectonic landmass section