Chapter 2 Form 4 : Matter and Substances

Assalamu'alaikum murid-murid,

Jum belajar lagi. :)

Tips :

• Hafal isotopes and uses dia.
• kena tahu pergerakan zarah, forces dan kinetic energy bagi setiap state, nnt chp 1 form 5 belajar balik bnde ni, jgn pndang remeh bnde ni.
• Jangan lupa tengok experiment cooling and melting of naphthalene. Soalan ni famous dalam paper 2 dan paper 3 dalam spm.
• Untuk experiment cooling of naphthalene, soalan famous dia tanya Quest : How to avoid supercooling? Ans : Stir continuously. Lagi soalan famous Quest : State the freezing point of the naphthalene? Ans : Freezing point dia ialah when substances change from liquid to solid.

Contoh supercooling

Bittaufiq wannajah

xoxo, publish !

Bye, Assalamu'alaikum.