横向
1
Center of an atom or cell
4
Tectonic landmass section
5
Curved glass that refracts light
6
Substance with pH below 7
7
Solid with repeating atomic pattern
10
Hottest planet in solar system
12
Compound containing oxygen
13
Naturally occurring inorganic solid
纵向
1
Unit of force
2
Unit of electric potential
3
Measure of matter in an object
5
Amplified beam of light
8
Group of similar cells
9
Basic unit of life
11
Nerve cell in the brain