横向
1
Precious yellow metallic element
3
Second lightest element
5
Ball of burning gas in space
6
Gas essential for breathing
7
Tissue that contracts for movement
8
Fourth state of matter
9
Substance with pH below 7
纵向
2
Center of an atom or cell
4
Reddish electrical conductor
7
Naturally occurring inorganic solid
8
Tectonic landmass section
10
Chemical element in table salt