横向
1
Group of similar cells
4
Molten rock beneath Earth surface
5
Unit of electric potential
6
Solid with repeating atomic pattern
8
Biological catalyst
9
Path of a planet around the sun
10
Gas essential for breathing
纵向
2
Center of an atom or cell
3
Unit of power
5
Hottest planet in solar system
7
Blocking of light by a celestial body