横向
1
Force that attracts objects together
5
The Red Planet
6
Amplified beam of light
8
Path of a planet around the sun
纵向
2
Hottest planet in solar system
3
Gas form of a liquid
4
Smallest unit of an element
7
Our home planet
Force that attracts objects together
The Red Planet
Amplified beam of light
Path of a planet around the sun
Hottest planet in solar system
Gas form of a liquid
Smallest unit of an element
Our home planet