横向
1
Blocking of light by a celestial body
4
Gas essential for breathing
5
Molten rock beneath Earth surface
6
Our home planet
7
Center of an atom or cell
9
Chemical element in table salt
10
Hottest planet in solar system
纵向
2
Second lightest element
3
Preserved remains of ancient life
4
Compound containing oxygen
8
Unit of energy
11
Particle of light