横向
1
Force that attracts objects together
4
Precious yellow metallic element
5
Unit of electric potential
6
Naturally occurring inorganic solid
7
Ball of burning gas in space
纵向
2
Solid with repeating atomic pattern
3
Blocking of light by a celestial body
4
Unit of heredity
8
Nerve cell in the brain
9
Molten rock beneath Earth surface
10
Chemical element in table salt