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Basic NeedsOf Human
food
shelter
air
water
To protect from
1.1 Understanding that humans have basic needs
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Plants Have Basic Needs
air Sun lightwater
With :
Without :
1.3 Understanding that plants have basic needs
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2.1 Analysing life processes that humans undergo
Analysing Life Processes ThatHuman Undergo
take in air
give out air
Nose/Mouth Wind-pipe Lungs
A process to produce
Their young or offspring
Number of chest movement
In a period of time
Organs
- Sight
- Smell
- Taste
- Sound
- Touch
( Carbon dioxide
+ water vapour )
( urine + mineral salt )
( Sweat + mineral salt )
Faeces
Purpose :
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2.2 Being aware that certain behaviour can disturb life processes
Behaviour That Can Disturb
Life Processes
Effects
Effects
How to avoid
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2.3 Analysing the life processes that animals undergo
Animals Life Processes
breathexcrete reproduce
Lay Eggs Give BirthOrgans
Monkey
bird
whale
fish prawn
crab frog earthworm
insects
defecate
To get rid of waste productfrom their bodies
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2.4
Life processesplants undergo
plants respond to stimuli.
water, sunlight, touch, gravity.
why plants need to reproduce
to ensure the survival of the species.
various ways plants reproducethroughseeds, spores, suckers, stem cutting,
leaves, underground stem.
what will happen to the world if
plants do not reproduce.
no food supply.
plants reproduce.
Seeds balsam, corn, durianSpores fern, mushroomSuckers banana, pineappleStem cutting hibiscus, rose, tapiocaLeaves bryophyllum, begoniaStem potato, onion, ginger and lily
the part of plant that responds
to touch.
the part of plant that responds
to sunlight.
Shoot
the part of plant that responds
to gravity.
Roots
the part of plant that responds
to water
Roots
Science Year 4INVESTIGATING LIVING THINGS2. Living Things Undergo Life Processes
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Special characteristics
of animals that protect themfrom danger.
special behaviour
of animals that protect themfrom danger.
The special characteristics and
behaviour of animals help toprotect them from danger.
3.1 animals have specific characteristics andbehaviour to protect themselves
Thick and hard skinTo prevent their enemies from injuring
Hard shellSnails and tortoise retract their headAnd legs into the shell when the are
Attacked by enemies
Hard scalesPangolins and crocodiles have hard
scales To protect their bodiesfrom injuries
SpinesRaise the sharp spines when
the enemiesAdvance towards them
HornsUse their horn to attack enemies.
Sharp clawsTo protect themselves and their
Young from the enemies- lion ,cat,Bears, and eagle.
Spray black inkDark surrounding helps the animal not
to been seen by enemies e.g: octopus, squid
Poisonous sting or fangsCan hurt and kill enemies-e.g..: scorpion,
centipede snake , bee.
CamouflageHas body colour or patterns that that are
Similar to the surrounding
Pretend to deadTo trick their enemiese.g.: beetle
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3.2/3.3
Animals have specific characteristics
and behaviour to protect themselves from
extreme weather and survive
how specific characteristics andbehavior of animals help to protectthem from very hot or cold weather.
specific characteristics andbehavior of animals that protect
them from very hot and cold weather.
Hot weather Cold weather
Wrinkled SkinElephant ,hippopotamuses and buffaloes
lose body heat through wrinkled skins
WallowingElephant, hippopotamuses and buffaloes
keep their body cool by wallowing in
mud holes
HumpsCamels store food and water in the form
Of fats in the humps on their back.
Thick FurPolar bears have thick fur to prevent the body
From losing heat to cold surroundings.
Fat Layers Under The SkinsPenguins, seals, and whales have fat layers under
their skin to keep their bodies warm
Small EarsSeals and Walruses have small ears to prevent
Heat loss from their bodies.
HibernatePolar bears hibernates during extreme cold
Weather
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3.4 Plants havespecific characteristics to protect
themselves from enemy
The specific characteristicsof plants that protect themfrom enemies
How the specificcharacteristics ofplants help to
protect themfrom enemies.
characteristics thatprotect plants.
Have thorns
poisonousHave fine hairs
Produces
latex
Close leaflets
when touch
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3.5 Plants have specific characteristics to
protect themselves from dry region and
strong wind
strong winddry region
Eg : cactus.
a. Long roots to absorb waterb. Succulent stem can store
waterc. Thorn can can prevent
the excessive loss ofwater
Eg: Coconut tree, bamboo tree,mangrove tree
a. Have stems that bend easilyb. Have buttress rootsc. Have separated leavesd. Needle- shaped leaves
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INVESTIGATING FORCE ANDENERGY
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Volume
MEASUREMENT1.1 Length
1.2 Area
1.5 Mass
1.6 Time1.7 Standard units
1.3 Solid
1.4 Liquid
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1.1Length
Terminology
- The distance
between two
points/place/position
Ways to measure
Measuring tape
Cubit
Arm spanString
Ruler
Standard Tools
Measuring tape Ruler
Unit
mm cm m km
Correct technique
- The eye must be
directly above the
end of object
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1.2 Area
-Area is the amount ofSpace taken up by the
surface of an object.
Terminology
- Using square card with asides of 1 centimetre
Standard unit
- Square millimetre (mm2)
- Square centimetre (cm2)
- Square metre (m2)
- Square kilometre (km2)
- Using formula
Area = length X width
1cm
1cm
Different ways to measure area
2cm
4cm
= 4cm X 2 cm
= 8cm2
3cm
3cm
- by placing uniform
objects such as tiles,
books and stamps
on the surface ofthe objects
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Volume
Terminology
The amount of space that
something takes up
1.3 Solid
1.4 LiquidFormula
Length x width x height
Standard Units
mm3, cm3, m3
Tools
Standard Units
measuring
cylinder
ml, lCorrect technique
a) taking the reading at the
lowest part of the meniscus.
b) eyes must be at the same level
as the lowest part of the meniscus
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1.5 Mass
Terminology
- Amount of matter in
an object
Tools
Electronic
balance
Simple
balance
Beam
balance
Kitchen
scale
Bathroom
scale
Lever
balance
Standard unit
mg g kg
Correct technique
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1.6 Time
Terminology
- Duration between
two event
Way to measure
- Sundial , sand clock ,
candle clock
Process that repeats uniformly
can be used to measure time
-Swinging pendulum
-Pulse rate candle
-water dripping
-Changing day and night
Tool
Standard unit
- Second , minute , hour
- Digital clock , watch ,
wrist watch , clock
Old clock
Events can be used measuring time
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1.7 The Importance of Standard Units
- for accuracy and
consistency
- easy to communicate
and understanding
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Investigating
Materials
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1.1
The properties of materials
Insulator
Float on water
Conduct
electricity
metal
conduct heatSink in water
Light to pass
through
Can be stretch
wood
stone rubber ring
glasscarbon plastics
metalwood
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1.2Applying knowledge
properties of materials in everyday life
Suggest ways
to keep things hot
Covered with insulators
Suggest ways
to keep things cold
hot thing cold thing
To prevent
heat loss
prevent from
absorbing heat
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1.3Uses of
materials based on their properties
List of objectand materials that they
are made of
object materials properties
spoon metal hard
tissue wood Soft
glasses glass transparent
Reason why particularmaterials are used to
make an object
cheap
easy to get
strength
good quality
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naturalmaterials
Man-made
materials
wood metal
rubber
cotton plastics synthetic cloth
glass
State that man-made materialscomes from natural materials
reducing reusing recycling
public transport plastic bag bottle plastics glass
1.4The importance of
reuse, reduce and recycle of materials
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RUSTING CAN PREVENTED
DIFFERENT WAYS TOPREVENT OBJECTS FROM
RUSTING
Coating with nonrusting materials
*paint
*oil
*grease
THE NECESSARY TO
PREVENT RUSTING
*Everlasting Live
*Save Natural
material
*Save Cost
*Looking good
1.6
*Conclusion; Rusting can be avoided by preventing iron contact
with air and water.
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UNDERSTANDING THAT SOME
MATERIALS CAN BE RUST
RUSTY OBJECTS NON RUSTY
OBJECTS
OBJECT MADE OF
IRON AND STEEL
OBJECT MADE OF
GLASS PLASTIC,
WOOD, CLAY AND SILK
*Nail*Spoon*Knife
*Needle
*Glass*Bottle*Cup
*Pencil
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INVESTIGATINGTHE EARTH
AND
THE UNIVERSE
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1.1
The solar system
List of
constituents
List of planets
Planets
move around
the Sun
-Nine Planets
-Natural satellites
-Meteors
-Comets
-Asteroids
Mercury MyVenus VeryEarth Excellent
Mars MotherJupiter JustSaturn ServedUranus UsNeptune NinePluto Pudding
THESOLARSYSTEM
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1.2 The relative sizeand distance between
the Earth, the Moonand the Sun
Size of the Sun
relative to the size
of the Earth.
Size of the Earth
relative to the size
of the Moon.
The relative distance from
the Earth to the Sun compared
to the relative distance from the
Earth to the Moon.
the Sun
1
the Earth
100
the Earth
1
the Moon
4
the Sun
the Earth the Moon
150 000 000 km 382 500 km
1 : 400
Much nearer :
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1.3Appreciating the perfect placement
of the planet Earth in theSolar System
Why certain planets
are not conducive
for living things.EFFECTThe Earth is
the only planet in the
Solar System thathas living things.
The nearer a planet to the Sun is,
the hotter is the surface of the planet .
The farther a planet from the Sun is,
the colder is the surface of the planet.
Do not have enough air and water.
Earth is the third planet from the Sun, it receives enough light
and heat from the Sun.
It is not too hot or too cold.
The atmosphere of the Earth contains air and there is water
on Earth.
Much nearer :The temperature on the Earth would rise.
Water on Earth would evaporate.
No water and the temperature would be
very hot.
Much farther :The temperature on the Earth would drop.
Water would freeze into ice.
All living things would die.
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INVESTIGATINGTECHNOLOGY
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1.1.Understanding the importance of technology in everyday life
Limitation of human abilityExamples of human limitations are
Unable to see fine objects
Unable to speak loud
Unable to walk for long distance
Unable to see far away objects
Devices to overcomehuman limitation
Microscope- The usage of lens to see fine
features of objects and microbes
Microphone-To increase the voice volume
Telephone
-To communicate from long distanceBicycle, motorcycle, airplanes
-Can travel long distance
in a shorter time
Telescope, binocular- To see far away objects
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TECHNOLOGY
1.2Understanding The
Development OfTechnology
Agriculture
e.g.:
hoe plough tractor
combine harvester
Transportation
Land: Animal bicycle
car trainAir: hot air balloon airship
glider aeroplane
Water: canoe raftsampan ferry
ship
Communication
Drawing carrier pigeon
Telephone
Construction
Cave hut wooden houseapartment
Examples
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Problems they
encounter in their daily life
TECHNOLOGY
Ideas to solvethe problems identified
Device to solvethe problem identified.
Demonstrate that deviceinvented can be used to
solve the problem
identified
1.3Synthesising
how technology
can be used tosolve problems
Cannot move and lift heavy thing
Cannot move farther
Sketch the model
Brain storming
lever
wheelbarrow
Pully can lift everything Wheel barrow can move heavything easily
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1.1 Understanding that microorganism is a living things
Microorganism
Bacteria Fungi Protozua Virus
Cannot see withnaked eyes
GrowMoveBreathe
Characteristics
Cause the
dough rise
Rotten oranges
Mouldy ricetiny
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1.1 Understanding that some microorganism are harmful and some are useful
Some Organisms Are Harmful AndSome Are Useful
Useful Harmful
Can cause
Illness Food
poisoning
Food
stale
Tooth
decay
Making bread/
tapai/tempe/fertilizer
Prevention
Disease
Stomach upset
Measles/cough
Tooth decay
Conjunctivitis/mumps
Washing hand
Drink boiled water
Covering mouth &
nose when coughing
& sneezing
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2.1
Survival of Animal
Species
Examples animals that take
care of their eggs and young.
how animals take care ofTheir eggs and young.
Why animals take care oftheir eggs and young.
Bird - Eggs with shell coveringFrog - Eggs are thick, slimy and having bad smell
Spider - kept in a bag underneath its bodyFish - keep their young in their mouthsSnake, Tiger - attack in order to protect their eggsTurtle - hide their eggsKangaroo - carry their young in their pouchesElephant - stay in herds
2.3
Importance
Shortage of food resource
Animals and plants speciesmay face extinction.
Bird, Frog, Spider, Fish, Snake,turtle, Kangroo, Elephant
To ensure the survival
of their species
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2.2
Survival of
Plant
Species
Water
Explosive
mechanism
Wind
Animal
Light
Air Space in the fruits
Not water absorbent
Light
Small in size
Winged
Dry when ripe
Explodes when mature
Brightly coloured
Edible
Have smells
Have hook
Coconut
Lily
Shorea
Angsana
Lalang
Rubber fruit
Balsam fruit
Chestnut
Rambutan
Mango
Love grass
Mimosa
Agents of dispersal Special characteristic Examples
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3.1 Food Chain
Animals and thefood they eat
Classify animals intoherbivore, carnivore
and omnivore.Producer ConsumerConstruct food chain
Green plant obtainenergy from
the sun to makefood. Green
Plant as a producer
Herbivore :Animals that eat plants only.
e.g.: cow, goat, deer
Carnivore:Animals that eat other animals.
e.g.: tiger, lion
Omnivore:Animals that eat plants and
other animals
Animals that eat plantor other animals
are called consumers.
The food relationshipamong living things
can be shown bya food chain.
To construct foodchain It must start
with plant asa producer.
In a food chainthe arrow
means eaten by
All living things needfood to survive.
Green plant can make theirown food. However
animals cannotmake their own make
their own food.
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3.2 Synthesizing food chain
to construct food web.
Foodweb
What will happenIf there is a change inpopulation of a certainspecies in a food web
Foodweb of different
habitats
What will happento a certain species
of animals if theyeat only one type
of food
Paddy field
garden
A change in the populationof a certain species
will effect the Populationof other species
They will face difficultyto survive if the
Source of foodruns out
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1 Energy
2 Electricity
3 Light
4 Heat
INVESTIGATING FORCE AND ENERGY
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INVESTIGATING FORCE AND ENERGY
ENERGY 1.1 The Uses of Energy
Why energy
is needed?
- by living things to carry
out life processes.
Ex : moving, breathing,growing
The Sources of Energy
Sun
- main source of energy
- produces light and heat
Food
- food contains
stored energy
Wind
- Moving air
- Used to pump
water, drive
small sawmills
- to move, boil, melt,
or bounce non-living things
FuelBatteries
- wood, coal,
petroleum,
natural gas
- device that
generated
electrical energy
from chemical energy
Water
- moving or
falling water
produceenergy
INVESTIGATING FORCE AND ENERGY
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INVESTIGATING FORCE AND ENERGY
ENERGY
1.2 Energy can be transformed from
one form to another
Form of energySound energy
Heat energy
Light energy Electrical energy Kinetic energy
Chemical energy
Potential energy
Energy can be
transformed
a) lighting a candle
Chemical energy
heat energy + light energy
b) Kicking a ball
Chemical energy
kinetic energy
heat energy
Example of appliance that make use of
energy transform
a) Electric iron
Electrical energy heat energy
b) Radio
Electrical energy sound energy
c) Television
Electrical energy sound energy + light energy
INVESTIGATING FORCE AND ENERGY
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INVESTIGATING FORCE AND ENERGY
ENERGY
1.3 Renewable and
Non-renewable Energy
Renewable energy
Energy that
cannot
be replaced
Resources
solar, wind,
biomass fuel,
water
Non-renewable energy
Energy that be
replenished when
it is used up
Resources
natural gas,
petroleum,
coal
Why use energy wiselyHow to use energy
Some energyresources cannot
be replenished
when used upTo save
cost
Avoid
wastage
Reduce
pollution
Turn off the
television when
no one
watching it
Switch off the
lights before
going to leave
the room
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Electricity SourcesDry cell
Accumulator
Dynamo
Solar cell
Type of circuit
Name Symbol
Dry cell
Connecting
wire
Switch
Bulb
Symbol and componentParallel circuit Series circuit
Precautions
Differences
The bulb in the parallel circuit is brighter
then the bulb in the series circuit
Danger of mishandlingelectrical appliances
Fire Burn
Electric shock Electrocution
Safety
precautions to be
taken when using
appliances
Do not touch electrical
appliances with wet hand
Do not repair electrical
appliances on your own
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Light
Can be reflected
How ?
Uses of reflection
Side mirror of a car
Periscope Kaleidoscope
Travel in a straight line
How shadow
is formed
When light is
completelyor partially
blocked by
an opaque
object
The light that
falls on objects
bounces off
the objects and
comes to your
eyes
mirror
Shadow form
Opaque object
Light
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Heat GainLoss Cooler
Warmer
How to measure temperature
using the correct technique
The effects of heat
on matter
Matter expandswhen heated Matter contractwhen cooled
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Investigating
Materials
water milk airwood
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1.1 Matter exist in the form of solid, liquid or gas
solid liquid gas
has mass
Properties of solid Properties of liquid Properties of gas
fixedvolume
fixed shape
has mass
examples
no permanent shape
fixed volume
stemstone
can't fixedshape
has mass
Can't fixedvolume
can compressed
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1.2CHANGINGSTATES OF
WATER
gas - liquid
liquid - gas
liquid - gas
solid - liquid melting
Boiling
Affected by windy and hotweather
evaporation
condensation
Freezing
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1.3
Understanding the water cycle.
Circulation of water in
the environment.
Formation of clouds
and rain.Importance of water.
Changes in the states of
matter in the water cycle
Liquid to gas (evaporation)Droplets of water will
become bigger and
heavier rain
evaporation
condensation
sea
Gas liquid (Condensation)
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1.4
Appreciating the importance
of water resources.
To prevent living aquatic from being
destroyed and undergoing extinction
Reasons to keep our
water resources clean. To ensure the cleanliness
of water supply
To regulate
the formation of
clouds and rain
To avoid infected
diseases
Ways to keep our water
resources clean
Keep the rivers clean Cleanliness campaign
2.1 The properties of acid,
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2.1 The properties of acid,
alkaline and neutral substances.
Identify the taste of acidic
and alkaline food.
Identify acidic, alkaline
and neutral substances
using litmus paper.
Conclude the properties ofacidic, alkaline and neutral
substances.
Changes in colourof litmus papers
blue to red red to blue
no change
bitter sour
Properties of alkali
Properties of acid
Properties of
neutral substancesTaste bitter & change
red litmus paper blue
Taste sour & change
blue litmus paper red
Other tastes
no changes in litmus paper
acid alkaline
neutral
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INVESTIGATINGTHE EARTH
AND
THE UNIVERSE
l ti harvesting
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Show
directions
Indicates
Seasons
A group of stars that form a
certain pattern in the sky
Importance of
constellation
Identify
constellation
What constellation is
1.1 Understanding
the constellation
Constellation
Big dipper
Scorpion
Orion
Southern Cross
North
NorthSouth April June
Kite or Cross
Scorpion
Hunter
Water dipper
south
December - January
June - August
planting harvesting
desert
sea
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2.1The movements
of the Earth, the Moon
and the Sun
Earth rotateson it axis
Earth rotatesand at thesame time
moves around
the sun
Moon rotateson it axis
Moon rotatesand at thesame time
moves aroundthe Earth
The Moon andthe Earth move
round the Sun at
the same time
The earthrotates on its axisfrom west to east
The changesin length and position
of the shadow
throughout the day
THE EARTH , THE MOONAND THE SUN
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2.2The occurrence of day and night
It is day time for the partof the Earth facing the Sun.
It is night time forthe part of the Earth facing
away from the Sun.
Day and night occurdue to the rotation of the Earth
on its axis.
the Sun the Earth
night-time
daytime
axis
west east
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2.3 Phases Of The Moon
The Moon Does Not Emit Light
The Moon appear brightwhen it reflect sunlight
Describe the phasesof the moon
1-New moon, 3- New half moon, 5- Full moon
7- Old half moon
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INVESTIGATINGTECHNOLOGY
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1.1The shapes of objects in a structure
The shape of objects Identify shape in structure
CuboidCube
Cylinder
Sphere ConePyramid
Sphere
Cylinder
Strengthd
Shapes of objects that arestable
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andStability
stable
The factors that affect
stability of objects
How base area affects
stability
How height affects stability
1.2The strength
and
stabilityof a structure
The factors that affect the
strength of a structure
Design a model thatis strong and stable
Cube, cone, cylinder
Height , base area
Bigger base area more stableSmaller base area less stable
Lower object more stable
Higher object less stable
Types of materials used
Steel ,Iron, Wood
Suggested design strong and stableBridge one with manila card
one with wood
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INVESTIGATING LIVING
THINGS
1.1
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Animals
Some
live in solitary(Animals that live by themselves)
Some
live in groups
(Animals that live together)
zebra giraffesbees ants tigerlizardcatsnake
For safety
For FoodTo avoid competition for food
To avoid competition for space
Cooperation is a
form of interaction
Sunlight Limited sunlight can reach them
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1.2
Understanding that competition is a form ofInteraction among living thingsAnimals
Plants
Factors for compete
Food
Water
Mate
Shelter
Space
Limited food resources
Limited water resources
Trying to get mate to breed
Defending or looking for shelter
Defending or looking for space
Factors for compete
Nutrient
Sunlight
Water
Space
Limited sunlight can reach them
Limited water resources
Limited space
Limited nutrient
Reason
Reason
Dodo birdDinosaurAuk bird
TigerTurtle
RaflessiaPitcher plantV fl t
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1.3
Understanding theresponsibility of human beings
in protecting endangered species
Extinct animal Endangered animal
Endangered plant
Factors
of Extinction
ways to prevent
extinction
Auk birdDesert rat kangaroo
MammothQuagga
Tasmanian wolf
Orang UtanPandaRhinocerosHornbillBlue Whale
Venus fly trapWild orchid
Illegal HuntingElephant Tusk
Tiger Skin & Bone
Blue Whale FatGiant Panda FurRhinoceros - Horn
Illegal LoggingHuman cut treesForest clearing
The destruction of habitat
Excessive developmentWater & air PollutionMany habitat has
destroyed
Extreme WeatherLong dry season
FloodForest fire
Campaign against
excessive LoggingEducate the public aboutthe importance of protecting& conserving animals & plantAvoid consuming or buying
products made fromendangered speciesEnforcing the law
ReplantingSelective logging
Setting up forest reservedSetting rehabilitation centreEncourage recycle , reuse
& reduce Campaign
Erosion
The Lost of habitatThe lose of raw material &food suppliesClimate changes
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1.4Knowing the impact of human
activities on environment.
Environmental destructioncaused by human activities
Impact of uncontrolledhuman activities to the Earth
Impact of human activities toenvironmental destruction
LandslideFlash-FloodsWater & Air pollution
Illegal & ExcessiveLogging
Clearing ForestImproper managementof development
ErosionLandslideFlash-FloodsLoss of
habitats
Illegal & Excessive hunting
Improper management ofwaste from factory
Improper management ofwaste from household
Extinction ofendangered
species
Air &water Pollution
Water Pollution
Flash flood
Excessive use of
fertilisers,pesticides& herbicides
Heavy usage ofmotor vehicles
gThe rise in temperature on earthExtinction of endangered speciesThe balance in nature is disturbedThe loss of the Earths natural water basin
Air &water Pollution
Air pollution
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1.Force 2.Movement
INVESTIGATING FORCE
AND ENERGY
INVESTIGATING FORCE AND ENERGYD
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FORCE
Pull an action of bringing an object
towards us
Push an action of moving an objectaway
D
E
F
I
N
I
T
IO
N
Effects
Move a stationary object
Stop a moving object
Change direction of moving object
Make object move faster or slower
Change the motion an object
Change the shape of an object
Friction
Definition
-Force that apposes
the movement of an
object.
-Two surfaces occurs
rub against each
other
Effects
-Surfaces warm.
-Difficult to move
-Wear and tear.
-Slow down and
stop
Reduce
-Lubricant :oil, wax,
grease or water
-Air cushion
-Talcum powder
-Roller marbles
-Ball bearing
Advantages
1. Hold thing
2. Walk without slipping
3. Sharpen a knife
4. Slow down moving
Disadvantages
1. Worn out the shoes / tyre
2. Produce heat
Advantages/Disadvantages
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Movement
Speed
A measurement on how fast an object moves
an object
which moves
faster travels
a longer
distance in agiven time
Definition
an object
which move
faster takes a
shorter time
travel a givendistance
Conclusion
Calculation
Formula
Speed = distance / time
Unit
km/h,
m/s ,
cm/s
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INVESTIGATINGMATERIALS
Food that has turned bad and
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Microbes that
spoilt food
Condition for
microbes to growWhat is
spoilt food
Unpleasent smelleg. Fish with bad smell
Unpleasent tasteeg. milk turns sour
Changed coloureg.vegetables, rice
Changed textureeg. Yogurt turns curd
Mouldyeg. Yogurt have many
black spots
Characteristics of
Spoilt Food
is not suitable to be eaten
Bacteria Fungus
Air
Water
Nutrient
Suitable
Temperature( 5C - 65 C )
Suitable acidity
1.1 Food Spoilage
Example :fi h f it
Example :Eggs water
Example :eggs, vegetables, fruits Example :
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1.2 Food Preservation
(Process whereby food turningbad is slowed down)
DryingBoiling Cooling Vacuum
packing
Pickling
Freezing
fish, prawn, fruits
Reason :Bacteria and fungi cannot
grow without water
Eggs, water
Reason :Boiled will killed bacteria
and fungi
gg g
Reason :Cold temperature slow
down the growth of
bacteria and fungi
Biscuits, crackers,
Reason :Bacteria and fungi
cannot grow
without water
Reason :Prevents the growth
of bacteria and
fungi
Example :Fruits, chili, fish
Bottling/canningPasteurisingSalting
Reason :Bacteria and fungi
cannot active at a
very low temperature
Example :
Fish, meat
Reason :Bacteria and fungi
cannot grow
without air
Example :Meat, fish, fruits
Reason :Destroy
microoganism
Example :Milk, yogurt
Reason :Bacteria and fungi
cannot grow in very
salt substances
Example :Fish, eggs
Reason :Dry the food
Example :Fish, meat
Reason :
Slow down theloss of water
Example :Fruits
Smoking
Waxing
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1.3 The Importance of
Preserving Food
Food can be kept
for a longer time
Easier to
store
Easier to
carry
To prevent the
wastage of food
2.1 The Effects of
Improper Waste DisposalTypes of waste
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Improper Waste DisposalOn The Environment
Gas
Liquid
Solid
From agricultural
activities
From vehicles and
open burning
Toxic materials
Rubbish
Sources of wastes
Types of waste
Open burning
Littering
Chanelling- waste
factories into river
Releasing smokeand dangerous gasses
Treat waste water
Keep environment
and home cleanReuse and recycle
rubbish and waste
Reduce car
Build factories far
from home
The improperways disposal Smoke dissolved
form weak acidKills plants & fish
Destroys building &
bridges
Rubbish thrown inrivers or drain Cause flash-floods
& water over flow
Kill plants & animals
in the river
Open burningCause asthma &
eye irritation
Air pollution
DiseaseCause by eating
polluted fish and plants
The HarmfulEffect
The properdisposal ways
2 2 Some Waste
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Animal extinction
Habitats destruction
Spoil natural beauty
Change Climate
Tin can
Plastic
Synthetic
Glass Metal objects
Give out
poisonous gas
Unpleasant
smell
Return nutrient
to soil
Prevent rubbish
from accumulate
Paper
Wood
Food
Meat
Fungi Bacteria
2.2 Some WasteCan Decay
Waste that decay
Waste that do not decay
Microbes that causewaste to decay
Advantages ofwaste decaying
Disadvantages ofwaste decaying
What will happen ifwaste do not decay
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INVESTIGATING THE EARTH& THE UNIVERSE
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ECLIPSE OF THE MOON
The Earth is
between the Sun
and the Moon
The Earth, the Moon
and the Sun are
positioned in a
straight line
The Earths position
blocks sunlight from
reaching the Moon.
The Earths shadow
is formed on the
Moon surface and
cause an eclipse ofthe Moon
Sun Moon
Earth
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ECLIPSE OF THE SUN
The Moon is
between the Sun
and the Earth
The Earth, the Moon and
the Sun are positioned in
a straight line
The Moons blocks
the sunlight from
reaching the Earth
The Moons shadow
is formed on the
Earths surfaceSUN
Earth
Moon
The place that experienced full eclipse is completely dark during the day time
PHASES OF THE SUN DURING THE ECLIPSE
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INVESTIGATINGTECHNOLOGY
1 1 Simple machineA device that allows us to usel f t k k i
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WHEEL AND AXLE
1.1. Simple machine
LEVER
WEDGE
PULLEY
GEAR
INCLINED PLANE
SCREW
-To carry or move heavy objects
- e.g. hammer , spoon , scissor
-To lift heavy objects easier
e.g. stairs , slanting wooden plank
-To carry to move heavy objects easily
e.g screw driver , car spanner
-To carry or lift objects to a higher place
-e.g flag pole , crane
-To cut or separate objects
-E.g knife , saw , axe
-To fix two objects together
-E.g drill bit , spanner
-To move objects easily
-Gear in a watch
less force to make work easieror faster
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1.2 Analysing a
complex
machine
Made up of more
than one simple
machine.
WheelbarrowLever, wheel and axle
CraneGear, pulley, lever
Egg BeaterGear, wheel and axle
BicycleGear, lever,
wheel and axle ScissorsLever, wedge
Hand Drill
Wedge, wheel and axle
1 3 A i ti th i ti f hi th t
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1.3 Appreciating the invention of machines that
make life easier.
Life with machine Life without machine
Difficulty moving heavy things.
Will not be able to travel from
one place to another faraway
place.
Help to move heavy things.
Work in the fields is made easier and
productivity of agricultural product is
raised.
Construction work is made easier and
can be completed faster.
Help us travel from one place toanother.
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KEM KECERMERLANGAN
ULUL ALBAB
Zon Pelajaran Temerloh 2009
SCIENCEOleh
Encik Ahmad bin Shafie