横向
1
Curved glass that refracts light
3
Naturally occurring inorganic solid
5
Particle of light
7
Precious yellow metallic element
9
Solid with repeating atomic pattern
12
Ball of burning gas in space
纵向
2
Disturbance that transfers energy
4
Biological catalyst
5
Tectonic landmass section
6
Center of an atom or cell
8
Element found in all living things
10
Smallest unit of an element
11
Measure of matter in an object