横向
1
Reddish electrical conductor
2
Molten rock beneath Earth surface
3
Solid with repeating atomic pattern
6
Center of an atom or cell
7
Glass that splits light into spectrum
8
Preserved remains of ancient life
纵向
1
Icy body with a tail near the sun
4
Unit of energy
5
Blocking of light by a celestial body
9
Force that attracts objects together