第十三课

 thirteen13

The seeds germinated种子发芽了

1. How does a seed grow into a plant under suitable conditions?

在适宜的条件下，一粒种子是怎样长成一株植物的?

Material package材料包

2. Seeds such as dried and soaked, dried and soaked in water.

干的和用水浸泡后的玉米粒、花生米等种子，纱布。

Activity process活动过程

3. Observe the structure of plant seeds.观察植物种子的结构。

4. I found out...我发现....

Information Card资料卡

5. The most important thing in the seed is the embryo.种子里面最重要的是胚。

6. The embryo is living and can develop into a plant.胚是有生命的，可以发育成一株植物。

7. What conditions do seeds need to germinate?种子发芽需要什么条件?

8. I guess I need water.我猜想需要水。

9. I guess we need air.我猜想需要空气。

10. Also possible … …还可能....

11. Let's study it.我们来研究一下。

12. No .1  1号

13. No .2  2号

14. If you change the temperature.....如果改变温度.....

Method guidance方法指导

15. At a suitable temperature, the seeds of disc 1 are covered with wet gauze, and the seeds of disc 2 are covered with dry gauze.

在适宜的温度下，1号盘的种子用湿润的纱布覆盖，2号盘的种子用干燥的纱布覆盖。

16. Observe the changes of seeds in two plates every day.每天观察两个盘内种子的变化。

17. Plant germinated seeds in the soil and observe any changes.

把发芽的种子种在土壤里，观察有什么变化。

18. Plant growth may require...植物的生长可能需要....

19. exchange our research results.交流我们的研究成果。

20. Some plants reproduce through seeds.有的植物通过种子繁殖后代。

21. Outreach activities拓展活动

22. Look for information to understand the role of mulching mulch when growing strawberries.

查找资料，了解种草莓时覆盖地膜的作用。