Sains tingkatan 1: jirim

Jirim terdiri daripada _____.

Matter consists of _____.

• zarah/ particles

• darah / blood

• zaharah/ zaharah

• bebola bulat / round balls

Apa itu resapan?

What is diffusion?

• Pergerakan zarah secara rawak

  Random particle movement

• Pergerakan zarah dari kawasan berkepekatan rendah ke berkepakatan tinggi

  Movement of particles from low-concentration to high-concentration areas

• Pergerakan zarah dari kawasan berkepekatan tinggi ke berkepekatan rendah

  Movement of particles from high-concentration to low concentration areas

• Tiada pergerakan zarah

  No particle movement

Yang manakah mempunyai kadar resapan yang paling tinggi?

Which has the highest diffusion rate?

• Air/ Water

• Kayu/ Wood

• Agar-agar/ Jelly

• Gas bromin/ Bromine gas

Perubahan keadaan jirim dari pepejal ke cecair

The state of matter changes from solid to liquid

• Pembekuan/ Freezinng

• Penyejatan/ Evaporation

• Pendidihan/ Boiling

• Peleburan/ Melting

Proses gas bertukar menjadi cecair

The process of gas turns into liquid

• Pembekuan/ Freezing

• Penyejatan/Evaporation

• Kondensasi/Condensation

• Pendidihan/ Boiling point

Semasa peleburan ____

During melting, ______.

• Haba diserap / Heat is absorbed

• Haba dibebaskan/ Heat is released

• Haba hilang/ Heat is gone

• Haba terperangkap/ Heat is trapped

Baju yang dijemur akan mengalami proses ________.

The clothes hung on the clothesline is undergoing ______.

• Pendidihan / Boiling

• Peleburan/ Melting

• Penyejatan / Evaporation

• Kondensasi/ Condensation

Ubat gegat/ naftalena akan mengalami proses_______.

Mothball/ naphtalene will undergo the process of _________.

• Pendidihan / boiling

• Pemejalwapan / sublimation

• Peleburan/ melting

• Pembekuan/ freezing

Apabila air suling mendidih, apakah yang berlaku kepada suhu?

When the distilled water boils, what happens to the temperature?

• Naik/ Increase

• Turun/ Decrease

• Kekal 100^oC / Remains 100^oC

• Tak tetap / Not consistent

Kayu dan besi digunakan untuk membina jambatan kerana ___.

Wood and iron are used to build bridges because they ___

• Mempunyai susunan zarah yang padat

  have compact particle arrangement

• mempunyai zarah

  have particles

• zarah bebas bergerak

  have free moving particles

• Ruang antara zarah besar

  have big spaces between particles.