横向
1
Measure of matter in an object
4
Basic unit of life
5
Icy body with a tail near the sun
8
Force that attracts objects together
9
Gas essential for breathing
纵向
2
Fourth state of matter
3
Chemical element in table salt
4
Solid with repeating atomic pattern
5
Element found in all living things
6
Unit of power
7
Infectious microscopic agent