横向
1
Fourth state of matter
3
Blocking of light by a celestial body
5
Unit of heredity
6
Gas essential for breathing
7
Form of thermal energy
10
Amplified beam of light
11
Icy body with a tail near the sun
纵向
2
Group of similar cells
3
Our home planet
4
Naturally occurring inorganic solid
6
Path of a planet around the sun
8
Curved glass that refracts light
9
Substance with pH below 7