横向
1
Disturbance that transfers energy
2
Precious yellow metallic element
4
Unit of energy
6
Magnetic metallic element
7
Smallest unit of an element
9
Gas essential for breathing
10
Substance with pH below 7
纵向
2
Unit of heredity
3
Chemical element in table salt
5
Molten rock beneath Earth surface
8
Center of an atom or cell