横向
1
Gas essential for breathing
3
Fourth state of matter
4
Unit of energy
7
Smallest unit of an element
8
Precious yellow metallic element
11
Biological catalyst
纵向
2
Unit of electric potential
3
Particle of light
5
Chemical element in table salt
6
Substance with pH below 7
9
Curved glass that refracts light
10
Blocking of light by a celestial body