本期节目提问:1. What is a particle model? 2. What are the three states of matter?3. What are the methods of separating mixtures?
听友249893026
Thank you for this
Charlie英语 回复 @听友249893026:
Thank you
Handsome2020
Three states ?
Charlie英语 回复 @Handsome2020:
Yes, solid, liquid and gas