横向
1
Natural satellite of Earth
4
Magnetic metallic element
6
Ball of burning gas in space
7
Unit of heredity
9
Solid with repeating atomic pattern
纵向
2
Mass per unit volume
3
Smallest unit of an element
5
Unit of energy
8
Fourth state of matter
Natural satellite of Earth
Magnetic metallic element
Ball of burning gas in space
Unit of heredity
Solid with repeating atomic pattern
Mass per unit volume
Smallest unit of an element
Unit of energy
Fourth state of matter