横向
1
Magnetic metallic element
3
Fourth state of matter
4
Group of similar cells
5
Gas essential for breathing
6
Compound containing oxygen
10
Unit of heredity
纵向
2
Our home planet
3
Particle of light
7
Center of an atom or cell
8
Solid with repeating atomic pattern
9
Molten rock beneath Earth surface
11
Smallest unit of an element