Selamat Datang kepada pelajar baru!

Asssalamualaikum warahmatullah wbt anak-anak murid,

Selamat datang cikgu ucapkan kepada semua pelajar baru tingkatan 1 dan tingkatan 4 yang baru sahaja mendaftar semalam 8 Februari 2012. Semoga anda datang dengan harapan mak ayah yang tinggi dan pulang dengan seribu kejayaan cikgu doakan insyaAllah. Kepada adik-adik tingkatan 1 selamat menempuh alam persekolahan peringkat menengah khususnya menengah rendah dan cikgu taknak senior-senior membuli adik-adik cikgu ni, yela diorang kan kecik lagi. Kamu pulak jangan la pulak menangis la taknak makan la, baru je sehari hidup di asrama, tu pun ada jugak mak ayah yang datang tengok anak pi sekolah tadi, kesiannya.

Ok lah apa pun cikgu ucapkan selamat belajar dan kepada pelajar lain jangan lupa exam yang akan datang. Adios!

Slideshow Topic 7 : Dynamics

Assalamualaikum warahmatullah.

Cikgu telah berjaya siapkan satu koswer untuk tugasan Diploma Pendidikan untuk Topik 7 : Dynamics. Pelajar-pelajar sekelian boleh download koswer tersebut di sini.

Edisi Aktiviti Maktab : Merentas Desa

Assalamualaikum warahmatullah wbt.

Cikgu nak ucapkan semoga berjaya kepada semua pelajar yang akan menyertai merentas desa pada Sabtu ni 28hb Januari 2012. Larian akan bermula jam 7.30 pagi jadi bersedialah terutama kepada rumah Ruby (merah).

Kepada pelajar tingkatan 3 dan 5 jangan lupa ada ceramah motivasi sempena menghadapi peperiksaan untuk kamu diikuti aktivti homeroom pada waktu malam. Untuk homeroom Omega 5 (wah depa dah letak nama untuk homeroom masing-masing, sebelum letak nama saya ja), berniagalah elok-elok, jangan cekik darah ye.

Sekian dulu untuk kali ni. Adios!

Edisi Latihan : Topic 1

Answer all questions.

1. When we accidentally kick a stone, which type of receptor will be stimulated to send nerve impulse
to the brain?
A    Touch receptor
B    Pressure receptor
C    Pain receptor
D    All the receptors at the feet

2. Which of the following senses is not correctly matched with its sensory organ?
    Sense        Sensory organ
A    Hearing         Ear
B    Taste             Hand
C    Smell            Nose
D    Touch           Skin

3. Among the following, which explains why the tip of the finger is more sensitive towards stimulus?
A    A thicker epidermis
B    More receptors
C    Thin layer of dermis
D    Waterproof feature

4. Which part of the eye allows light to enter the eye?
A    Iris
B    Retina
C    Cornea
D    Pupil

5. What is the sensory organ for smell?
A    Nose
B    Ear
C    Tongue
D    Skin

6. Which of the following is not correctly matched between the eye part and its function?
    Parts of the eye        Function
A    Sclera                         Protects the eye and keeps its shape
B    Pupil                          Control the amount of light entering the eye
C    Retina                        Detects light stimulus and converts it into nerve impulse
D    Yellow spot               The most sensitive part towards light

7. Which part of the ear vibrates when sound waves strike it?
A    Ossicles
B    Semi-circular canals
C    Cochlea
D    Eardrum

8. Which of the following shows the correct pathway of light entering the eye?
A    Cornea  →  Aqueous humour  →  Pupil  →  Lens  →  Vitreous humour  →  Retina
B    Cornea  →  Vitreous humour  →  Pupil  →  Lens  →  Aqueous humour  →  Retina
C    Cornea  →  Pupil → Aqueous humour → Lens → Vitreous humour → Retina
D    Cornea  →  Pupil  →  Vitreous humour  →  Aqueous humour  →  Lens  →  Retina

Edisi Nota : Human Eye

1. The sense of sight is the sense that can detect light stimulus.

2. Structure of the human eye:

§  the sclera (outermost)

§  the choroids (middle) and

§  the retina (innermost)

1. The lens in the human eye is a transparent convex lens.

2. An inverted image is focused on the retina.

3. Light rays are refracted by the eye lens. The eye lens focuses the image onto the retina by changing the thickness of the eye lens. The thickness of the lens is changed by the ciliary muscles.

·        Focusing near objects.

§  To focus near objects onto the retina, the ciliary muscles contract. The eye lens become thicker.

·        Focusing distant object.

§  To focus distant objects onto the retina, the ciliary muscles relax. The eye lens becomes thinner.

Edisi Nota : Nose

1.  The nose is sensory organ for smell.

2.  Cells sensitive to smell (smell receptors) are found on the top of the nasal cavity.

3.  Structure of the human nose.

a.          The human nose has a cavity lined with epithelium tissue.

b.          On the surface of the epithelium tissue are the sensory cells known as olfactory cells.

c.           The surface of the nasal cavity is moist because of the mucus secreted by the cells of a gland.

d.          The nasal cavity has a pair of external opening (nostrils) which have hair to filter dust from the air inhaled through the nose.

4.  When we have a cold or flu, a lot of mucus is produce. The smell receptors are surrounded by this thick layer of mucus and very little of chemical vapor gets to the smell receptors. Therefore, the smell receptors do not get stimulated enough to effectively function as a sensory organ of smell. The sensitivity of the nose towards stimuli is influenced by the following factors:

i.            The strength of the smell. A stronger smell will be detected by the nose easily compared with a weaker smell.

ii.          The presence of mucus in the nose. A lot of mucus will reduce the sensitivity of the nose.

Edisi Eksperimen : Korek mata lembu. Eeee

Dalam buku praktikal  (amali) Science Form 2, ada eksperimen mengkaji mata lembu. Cikgu rasa kamu mesti tak sanggup nak tengok mata-mata lembu ni, tak kurang juga yang teruja nak buat. Macam ni lah, cikgu rasa teknologi sekarang pun boleh membantu kamu, lihat saja video di bawah ni. Selamat belajar!