横向
1
Push or pull on an object
3
Second lightest element
4
Tissue that contracts for movement
6
Hottest planet in solar system
7
Compound containing oxygen
10
Infectious microscopic agent
13
Chemical element in table salt
纵向
1
Preserved remains of ancient life
2
Unit of energy
5
Amplified beam of light
8
Force that attracts objects together
9
Particle of light
11
The Red Planet
12
Tectonic landmass section