第六课

six6

Separate them把它们分离

1．Rice mixed into the sand, how to separate them?

米中混进了沙子，怎样将它们分离呢?

Material package材料包

2．Wood chips, iron chips, small plates, sand, white sugar, etc

木屑、铁屑、小盘子、沙子、白糖等

Activity process活动过程

3．How to separate the wood and iron chips? 怎样分离木屑和铁屑?

4．Try the magnet.用磁铁试试。

5．Or...还可以......

6．How to separate the sand from the white sugar? 怎样分离沙子和白糖?

7．In water, sugar can dissolve, sand is difficult to dissolve.

在水中,白糖能够溶解，沙子很难溶解。

8．Pour them into the water.把它们倒入水中。

9．After mixing, rest for a period of time.混合后，先静置一段时间。

10．Slowly pour sugar water into another beaker.把糖水缓慢倒入另一个烧杯中。

11．How to separate sugar from sugar water?怎样把糖从糖水中分离出来?

12．Heating the sugar water给糖水加热会.....

13．Be safe! 注意安全!

14．Expand activities拓展活动

15．Find out what other ways to separate mixed objects in life.

找一找生活中还有哪些分离混合物体的方法。

1. Module evaluation单元评价

2. Knowledge Park知识乐园

3. Fill in and say.填一填，说一说。

4. Mix and Separation混合与分离

5. Methods to accelerate dissolution加快溶解的方法

6. heat加热

7. Method of separation分离的方法

8. sediment 沉淀

9. The Hall of Science科学殿堂

10. When washing clothes, why often brew washing powder with warm water first?

11. 洗衣服时，为什么常常先用温水冲泡洗衣粉?

12. Reflection on Space反思空间

13. My harvest我的收获

14. ●Heating can accelerate dissolution.加热可以加快溶解。

15. What I want to improve on the我想改进的

16. ●Experiments to separate sand and white sugar分离沙子和白糖的实验

17. I want to continue exploring the我想继续探究的

18. ●How to separate oil from water?怎样把油从水中分离出来?