横向
1
Unit of force
5
The Red Planet
6
Tectonic landmass section
纵向
2
Basic unit of life
3
Particle of light
4
Element found in all living things
6
Fourth state of matter
7
Our home planet
Unit of force
The Red Planet
Tectonic landmass section
Basic unit of life
Particle of light
Element found in all living things
Fourth state of matter
Our home planet