Amazing Oceans
What sinks, what floats, why?
What you need:
● A raw (生的) egg
● A glass of water
● Salt
What to do:
1.Very carefully5 put a raw egg in a glass of water. What happens to the egg?
- 对本期电子报订户、有效期内的VIP教师会员和本学期小学尊享卡用户，我们开放所有内容：
- 如果您拥有以上权限，请点这里登录；
- 订阅电子报，请点这里；
- 激活VIP教师卡，请点这里；
- 激活21英语尊享卡，请点这里。
