横向
1
Basic unit of life
3
Molten rock beneath Earth surface
5
Unit of electric potential
7
Center of an atom or cell
9
Particle of light
纵向
1
Element found in all living things
2
Group of similar cells
3
Naturally occurring inorganic solid
4
Substance with pH above 7
6
Path of a planet around the sun
8
Tissue that contracts for movement