横向
1
Our home planet
4
Compound containing oxygen
6
Substance with pH above 7
7
The Red Planet
9
Preserved remains of ancient life
纵向
2
Disturbance that transfers energy
3
Second lightest element
5
Unit of energy
8
Substance with pH below 7
Our home planet
Compound containing oxygen
Substance with pH above 7
The Red Planet
Preserved remains of ancient life
Disturbance that transfers energy
Second lightest element
Unit of energy
Substance with pH below 7