横向
1
Preserved remains of ancient life
4
The Red Planet
6
Form of thermal energy
7
Magnetic metallic element
纵向
2
Smallest unit of an element
3
Second lightest element
5
Positive particle in nucleus
8
Unit of power
Preserved remains of ancient life
The Red Planet
Form of thermal energy
Magnetic metallic element
Smallest unit of an element
Second lightest element
Positive particle in nucleus
Unit of power