横向
1
Preserved remains of ancient life
4
Icy body with a tail near the sun
5
Molten rock beneath Earth surface
7
Amplified beam of light
9
Naturally occurring inorganic solid
10
Our home planet
纵向
2
Nerve cell in the brain
3
Substance with pH below 7
4
Reddish electrical conductor
6
Disturbance that transfers energy
8
Second lightest element
11
Glass that splits light into spectrum