横向
1
Molten rock beneath Earth surface
3
Blocking of light by a celestial body
5
Mass per unit volume
6
Gas form of a liquid
10
Force that attracts objects together
11
Nerve cell in the brain
12
Substance with pH below 7
纵向
2
Glass that splits light into spectrum
4
Element found in all living things
6
Infectious microscopic agent
7
Disturbance that transfers energy
8
Basic unit of life
9
Precious yellow metallic element