横向
1
Our home planet
2
Particle of light
3
Disturbance that transfers energy
5
Gas essential for breathing
7
Gas form of a liquid
纵向
2
Fourth state of matter
4
Unit of heredity
6
Naturally occurring inorganic solid
Our home planet
Particle of light
Disturbance that transfers energy
Gas essential for breathing
Gas form of a liquid
Fourth state of matter
Unit of heredity
Naturally occurring inorganic solid