横向
1
Force that attracts objects together
3
The Red Planet
6
Amplified beam of light
8
Fourth state of matter
纵向
2
Smallest unit of an element
4
Preserved remains of ancient life
5
Molten rock beneath Earth surface
7
Ball of burning gas in space
Force that attracts objects together
The Red Planet
Amplified beam of light
Fourth state of matter
Smallest unit of an element
Preserved remains of ancient life
Molten rock beneath Earth surface
Ball of burning gas in space