横向
1
Infectious microscopic agent
3
Tectonic landmass section
4
Gas essential for breathing
5
Second lightest element
8
Curved glass that refracts light
9
Chemical element in table salt
纵向
1
Hottest planet in solar system
2
Preserved remains of ancient life
6
Force that attracts objects together
7
Unit of energy
10
Basic unit of life