在生活与科学的口语交际活动中,你与同学之间有了哪些交流?你:________________________________________________________________________________同学:______________________________________________________________________________-你:_______________________________________________________________________________学:________________________________________________________________________________
问题描述:
在生活与科学的口语交际活动中,你与同学之间有了哪些交流?
你:________________________________________________________________________________同学:______________________________________________________________________________-你:_______________________________________________________________________________学:________________________________________________________________________________
答
鸡蛋为什么会浮起来?
往清水里加盐,鸡蛋就会浮起来.
原因是什么?
盐水的浮力比清水大.就像死海的道理.