横向
1
Center of an atom or cell
5
Particle of light
7
Path of a planet around the sun
8
Chemical element in table salt
10
Hottest planet in solar system
11
Biological catalyst
14
Reddish electrical conductor
纵向
2
Solid with repeating atomic pattern
3
Mass per unit volume
4
Blocking of light by a celestial body
6
Glass that splits light into spectrum
7
Compound containing oxygen
9
Nerve cell in the brain
12
Form of thermal energy
13
Push or pull on an object