横向
1
Icy body with a tail near the sun
2
Infectious microscopic agent
4
Compound containing oxygen
5
Substance with pH above 7
6
Second lightest element
8
Gas essential for breathing
9
Natural satellite of Earth
纵向
1
Element found in all living things
2
Hottest planet in solar system
3
Chemical element in table salt
7
Absolute temperature scale unit