横向
1
Molten rock beneath Earth surface
4
Infectious microscopic agent
5
Icy body with a tail near the sun
6
Preserved remains of ancient life
7
Group of similar cells
11
Nerve cell in the brain
纵向
2
Second lightest element
3
Tissue that contracts for movement
8
Unit of power
9
Chemical element in table salt
10
Natural satellite of Earth