横向
1
Element found in all living things
5
Unit of force
6
Disturbance that transfers energy
8
Magnetic metallic element
纵向
2
Center of an atom or cell
3
Precious yellow metallic element
4
Path of a planet around the sun
7
Icy body with a tail near the sun
9
Substance with pH below 7
10
Preserved remains of ancient life