横向
1
Ball of burning gas in space
3
Gas essential for breathing
4
Mass per unit volume
6
Tissue that contracts for movement
8
Glass that splits light into spectrum
10
Biological catalyst
纵向
2
Blocking of light by a celestial body
5
Magnetic metallic element
6
Measure of matter in an object
7
Element found in all living things
9
Positive particle in nucleus