横向
1
Naturally occurring inorganic solid
5
Reddish electrical conductor
6
Unit of electric potential
8
Chemical element in table salt
10
Solid with repeating atomic pattern
11
Force that attracts objects together
纵向
2
Unit of heredity
3
Preserved remains of ancient life
4
Infectious microscopic agent
6
Gas form of a liquid
7
Biological catalyst
9
Measure of matter in an object
12
Form of thermal energy