横向
1
Nerve cell in the brain
3
Fourth state of matter
5
Preserved remains of ancient life
7
Element found in all living things
10
Gas essential for breathing
11
Substance with pH above 7
纵向
2
Reddish electrical conductor
4
Path of a planet around the sun
6
Chemical element in table salt
8
Compound containing oxygen
9
Molten rock beneath Earth surface
12
Gas form of a liquid