横向
1
Biological catalyst
4
Positive particle in nucleus
6
Tectonic landmass section
10
Substance with pH above 7
11
Unit of energy
纵向
2
Unit of heredity
3
Force that attracts objects together
4
Particle of light
5
Our home planet
7
Unit of electric potential
8
Amplified beam of light
9
Blocking of light by a celestial body
12
Gas form of a liquid