横向
1
Precious yellow metallic element
4
Substance with pH below 7
5
Biological catalyst
6
Solid with repeating atomic pattern
9
Particle of light
10
Infectious microscopic agent
纵向
2
Unit of electric potential
3
Mass per unit volume
7
Tissue that contracts for movement
8
Element found in all living things
9
Glass that splits light into spectrum
11
Force that attracts objects together
12
Ball of burning gas in space