横向
1
Amplified beam of light
3
Glass that splits light into spectrum
4
Substance with pH above 7
5
Group of similar cells
8
Measure of matter in an object
9
Basic unit of life
10
Path of a planet around the sun
纵向
2
Mass per unit volume
3
Positive particle in nucleus
6
Substance with pH below 7
7
Unit of heredity