横向
1
Element found in all living things
4
Mass per unit volume
8
Unit of electric potential
9
The Red Planet
纵向
2
Biological catalyst
3
Our home planet
5
Substance with pH above 7
6
Amplified beam of light
7
Force that attracts objects together
Element found in all living things
Mass per unit volume
Unit of electric potential
The Red Planet
Biological catalyst
Our home planet
Substance with pH above 7
Amplified beam of light
Force that attracts objects together