横向
1
Form of thermal energy
4
Particle of light
5
Gas form of a liquid
6
Hottest planet in solar system
8
Blocking of light by a celestial body
11
Unit of force
13
Reddish electrical conductor
纵向
2
Mass per unit volume
3
Our home planet
4
Glass that splits light into spectrum
7
Group of similar cells
9
Icy body with a tail near the sun
10
Center of an atom or cell
12
Unit of heredity
14
Push or pull on an object