I know this blog was created for any ideas in teaching Math in China, but yours truly is currently teaching Grade 7 Science and don't want to create another blog for that. So I'll add it here.
Today, I'll add a website about Newton's Laws of Motion. In this link you can get a lot of ideas about teaching it.
https://mathsciencewarrior.weebly.com/newtons-three-laws.html
For Egg drop experiment, this link gives you good ideas about how the students can do it by themselves.
http://theeggdrop.weebly.com/