横向
1
Gas essential for breathing
3
Fourth state of matter
4
Element found in all living things
7
Precious yellow metallic element
纵向
2
Unit of energy
3
Particle of light
5
Force that attracts objects together
6
Ball of burning gas in space
Gas essential for breathing
Fourth state of matter
Element found in all living things
Precious yellow metallic element
Unit of energy
Particle of light
Force that attracts objects together
Ball of burning gas in space