横向
1
Tectonic landmass section
3
Tissue that contracts for movement
4
Chemical element in table salt
5
Form of thermal energy
6
Substance with pH below 7
8
Disturbance that transfers energy
12
Second lightest element
纵向
1
Fourth state of matter
2
Unit of force
7
Molten rock beneath Earth surface
9
Preserved remains of ancient life
10
Reddish electrical conductor
11
Substance with pH above 7