横向
1
Tectonic landmass section
4
Chemical element in table salt
5
Measure of matter in an object
8
Unit of heredity
10
The Red Planet
12
Icy body with a tail near the sun
纵向
2
Gas essential for breathing
3
Amplified beam of light
6
Group of similar cells
7
Molten rock beneath Earth surface
9
Center of an atom or cell
11
Substance with pH above 7