横向
1
Glass that splits light into spectrum
3
Solid with repeating atomic pattern
4
Nerve cell in the brain
8
Disturbance that transfers energy
11
Unit of force
13
Substance with pH above 7
纵向
1
Particle of light
2
Chemical element in table salt
5
Precious yellow metallic element
6
Gas essential for breathing
7
Molten rock beneath Earth surface
9
Second lightest element
10
Mass per unit volume
12
Tissue that contracts for movement