横向
1
Precious yellow metallic element
3
Amplified beam of light
4
Biological catalyst
5
Basic unit of life
7
Molten rock beneath Earth surface
10
Mass per unit volume
纵向
2
Center of an atom or cell
5
Icy body with a tail near the sun
6
Glass that splits light into spectrum
8
Tissue that contracts for movement
9
Element found in all living things
