4.Diagram 4 shows an experiment to study the effect of impurities on the

3.Diagram 3 shows an experiment to study the effect of impurities on the melting point of pure ice.

Rajah 3 menunjukkan satu eksperimen untuk mengkaji kesan bahan asing ke atas takat lebur ais .

The results of the experiment are recorded in Table 3

Keputusan eksperimen tersebut dicatatkan dalam Jadual 3.

Types of ice/ Jenis aisMelting point / takat lebur

Pure ice / ice tuken0C

Ice / ais + common salt / garam

Table 3 /Jadual 3Complete Table 3 by writing down the melting point of impure ice as shown in Diagram 3. Lengkapkan Jadual 3 dengan menulis takat lebur bagi ais tak tulen bagi eksperimen tersebut. (1mark)Write down inference based on the results of the experiment.

Tuliskan satu inferen berdasarkan keputusan bagi eksperimen tersebut.

_____________________________________________________________________ (1 mark)

State the variables in this experiment.

Nyatakan pembolehubah-pembolehubah bagi eksperimen ini.

Manipulated variable : _____________________________________________ (1 mark)

Pembolehubah di manipulasikan: Responding variables : ____________________________________________ (1 mark)

Pembolehubah bergerakbalas:

(d) What is the operational definition of pure ice?

Apakah definasi operasi bagi ais tulen?

__________________________________________________________________________ (1 mark)Diagram 3/ Rajah 3