横向
1
Unit of force
4
Tectonic landmass section
6
Amplified beam of light
7
Center of an atom or cell
8
Glass that splits light into spectrum
10
Push or pull on an object
11
Unit of power
12
Nerve cell in the brain
纵向
2
Curved glass that refracts light
3
Group of similar cells
5
Absolute temperature scale unit
8
Positive particle in nucleus
9
Molten rock beneath Earth surface
13
Force that attracts objects together