Thursday, 19 May 2011

Answering Techniques Section B (Science Paper)

1  This section consists of 5 structural questions which give a total of 20 marks.
2  The time suggested for this section is 30 minutes.  This means you have an average of 6 minutes to answer each question.
3  Answer all the questions.  Write your answers in the spaces provided in the paper.
4 This section tests your science process skills. These include:

(a)  Making Inferences
- Using the information given to draw early conclusions and explain events.

(b)  Controlling varibles
-  Naming the manipulated, responding and fixed variables in an investigarion.

(c)  Making hypothesis
-  Making a general statement about the relationship between the manipulated variable and the responding variable in an investigation.

(d)  Interpreting data
- Giving rational explanation about an object, event or pattern observed.

(e)  Predicting
- Making a forecast about what will happen based on the collected data.

You need a lot of practice to do well in this section so, answer all the questions in section B.


Making Inference


  • Using information from observations to make reasonable early conclusions.
  • Menggunakan data dari pemerhatian untuk membuat penerangan awal.

  • Making various possible interpretations from single observation
  • Memberikan pelbagai andaian dari pemerhatian tunggal

  • Using inferences as a tool to determine the appropriate additional observations.
  • Menggunakan inferens sebagai alat untuk mengenalpasti pemerhatian tambahan yang jitu

  • Testing the accuracy of inferences through additional observations.
  • Menguji ketepatan inferens melalui pemerhatian tambahan

  • Give reason to an observation or making an earlier conclusion from what have been observed.
  • Memberikan sebab kepada pemerhatian yang telah dibuat
 Type of Inferences

  • Logical inference – any reason as long as it is logic.
  • Inferens logik- sebarang sebab yang logik

  • Comparing – any logical reason but the answer must be in a form of comparing.
  • Bandingan – sebarang sebab yang logik dalam bentuk bandingan

  • Controlled/exact – only one specific reason is accepted.
  • Jitu – hanya satu jawapan sahaja   

CONTROLLING VARIABLES/ MENGAWAL PEMBOLEH UBAH


    The Variables/ Pemboleh ubah-pemboleh ubah

    1. What to change (wc) / yang berubah
    2. What to observe/measure (wm) / yang diukur/ diperhatikan
    3. What to keep the same (same)/ yang sama

    1. What to observe/measure
       
    Thing that is being observed / measured /investigated / recorded / the result of an
          investigation.

    2. What to change (tc)
         
    Thing that is changed or being manipulated in an investigation and it has an effect on
          thing that is observed.

    3.  What to keep the same
        
    Thing that is always the same and kept constant in an investigation.  
     



    Friday, 13 May 2011

    四年级科学年中复习试卷答案:

     
    _____________________________________  
    1 (a)  为了研究水的分量与植物的生长情况之间的关系。
    (b) 植物X健康地生长,而植物Y枯萎了。
    (c) 植物需要适量的水才能生存。

    2(a) 为了研究弹簧的直径如何影响弹簧伸展的长度。
    (b)弹簧的长度
    (c)弹簧伸展的长度
    (d)弹簧的直径越大,伸展的长度越长。
    ————————————————————————————————  
    1  (a)1.肺   2.皮肤   3.肾
    (b) 1 二氧化碳 和水分  2. 汗    3.尿液

    2(a) 石灰水变浑浊。   (注:石灰水(颜色-透明)遇到二氧化碳时会变成浑浊。)
    (b) 螳螂呼出二氧化碳。
    (c)瓶子里的氧气用完了。



    四年级科学年中复习试卷

    以下是老师提供大家的一系列复习试题,同学们可以下载后,然后习作。请按答案来检查你的答案。







    按——— 》 答案

    For Pertandingan Saintis Muda Only

    Some science activities already email to you all.  Pls collect in your mail box.  Thank you!

    from:Cikgu Wong
    ————————————————————————————————————

    Science note:
    Pls download, print out and read.