A complete BIOLOGY SPM exam focus ,marking scheme included. Made BIOLOGY learning easier!Full description
Summary of Form 4 Mathematics Chapter 3
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A complete BIOLOGY SPM exam focus ,marking scheme included. Made BIOLOGY learning easier!
A complete BIOLOGY SPM exam focus ,marking scheme included. Made BIOLOGY learning easier!Full description
A complete BIOLOGY SPM exam focus ,marking scheme included. Made BIOLOGY learning easier!Full description
A complete BIOLOGY SPM exam focus ,marking scheme included. Made BIOLOGY learning easier!Full description
Chemistry Form 4 Chapter 3Full description
CHAPTER 4 : MATTER AND SUBSTANCE 1. Matter : Anything that has and STATES OF MATTER SOLID
Arrangement of particles
LIQUID
………… closely packed, . …………. in an orderly arrangement ,
………………….packed in an ………….. arrangement
Movement of particles
…………….and ………… in a ……………. Position
Forces of attraction Kinetic energy of particles Density
Move …………..
…………… strong
…………….. strong
. GAS
……….. far apart , …… in an orderly arrangement , Move ………….and ………….. Very ………….
CHANGES IN STATES OF MATTER Process
Change of state
Factor Heat is absorbed
Melting
Solid Liquid
Heating Heat is absorbed
Boiling/ evaporation
Liquid Gas
Heating
Freezing
Liquid Solid
Cooling
Heat is released
Heat is released Condensation
Gas Liquid
Cooling
Sublimation
Solid Gas
Heating
Sublimation
Gas Solid
Cooling
Heat is absorbed
Heat is released
Exercise State whether the processes below released or absorbed heat energy? (a) boiling: ……………………………….. (b) sublimation: …………………………… (c) condensation: …………………………. 2. State the change in the state of matter that occurs during the following process: (a) melting : ………………………………………………. (b) boiling : ……………………………………………….. (c) freezing : ………………………………………………. Experiment 3. A student carried out an experiment to determine the boiling point of a solution. The table below shows the result of the experiment. Time / minute
0
2
4
6
8
10
Temperature / oC
28
48
68
88
102
102
(a) Based on the table above, draw a graph of temperature against time. (b) What is the relationship between the temperature of the solution and time in the first 6 minutes? …………………………………………………………………………………………… (c) Based on the graph in (a), determine the boiling point of the solution. Mark the boiling point of the solution on the graph. Boiling point = …………………
Aim :To study the changes in the states of matter Materials : and apparatus : Ice cubes, thermometer, 50 mf beaker, wire gauze, Bunsen burner, tripod stand Set up the apparatus as shown in the diagram. Heat the ice cubes slowly. Record the temperature reading every two minutes until the water boils.
