answr tech for sn in bi
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UPSR SCIENCE
BERSAMACIK GU MOHAMA D NOR IQMAL
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complete
In order
accurate
simple
Fixed to the needs ofthe question
Fixed the marking
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* Conquer scientific skills and thinking skills
* Understand and full-use the science term
* Understand concept/theory and science fact.
* Maths skills- emphasize on the units
* Intepret information effectually
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Criterion;
The use of our senses to identify and describean objects properties
Focus ; co m pare before and after d i fferenc e and s im ilar i ty
* on the m ain idea (resp on din g var iable /
w hat to m easure
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Pond A Pond B
An investigation on the fish pond in Pak Abus pond wascarried out by an agriculture officer. The picture shows theresult written by the officer.
Based on the officer result write one observation.
________________________________________________The size of fish in pond B is bigger than that in pond A.
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Time (minute)
0
100
80
60
40
20
2 4 6 8 10 12
Watertemperature (C)
The graph above shows the result of an investigation onthe temperature of water when heated.
State the temperature of water at 10 until 12 minutes.
________________________________________________________________The temp erature rem ains at 100 o C / The temperature do es no t chang e.
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An investigation conducted by a naturalist on the numberof hippotatamus that live in the forest X and Y for 5 years
was recorded in the table below.
YearNumbers of hippotatamus
Forest X Forest Y
1980 11 98
1981 23 78
1982 34 65
1983 47 51
1984 89 30
What can be stated about the difference between the number ofhippotatamus in forest X and Y
________________________________________________________________ ________________________________________________________________The number of hippotatamus in forest X increase whilehippotatamus in forest Y decrease.
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Notes:Manipu lated var iable (w hat to change [ TC ] ) :- i t em s / ob jec t s w hich w e change dur ing the experiment
Respond ing v ar iable (w hat to m easu re [ TM ] ) :-Items / object wh ich chang e af ter the exp er im ent .- I t s usu ally th e resul t o f the exper iment .
Con stan t variable (kept the sam e [ KS ] ) :-Items/objects which doesnt change before or after the experiment
Criterion;Items or objects that used in an experiment which can be manipulate
and influence(change) the result of the experiment.
Manipu lated va r iab le is c hanged to o bse rve i t s r e la tionsh ip w i th the respond ingVariable . At the sam e t ime, the f ixed v ar iables are kept con stant .
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Can be determine through;
a. Inference
cause ( TC )
Observation ( TM )
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Observation( TM )
cause
( TC )
More leaf
Less leaf
Number of leaf
Enoughfertilizer
Not enoughfertilizer
Quantity offertilizer
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Many nails
Less nails
Numbers ofnail
Strong magnet
Weak magnet
Strength of magnet
Observation ( TM )cause( TC )
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long rubberband
short rubberband
length ofrubber band
heavy block
light block
Weight of block
12 cm 14 cm16 cm
rubber band
block
Observation ( TM ) cause( TC )
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The figure below shows the finding when two sponges ofdifferent sizes was soaked in containers filled with water.Initially, the volume of water in each container was 700 ml.
500ml 329ml
TC: s ize of sp on ge
TM: vo lum e of remain w ater
K S: Ini t ia l w ater vo lum e
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c. Diagram
- table
- graph
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Month
10
20
30
40
5060
70
80
90
JulyJan March Mei Sept Nov
w a
t e r
l e v e
l ( m e t r e
)
State the following variables;
i. Manipulate variable / what to change : .
ii. Responding variable / what to measure :
TM TC
Water level
Month
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Constant variable (keep the same)
TC : Quantity of fertilizer
KS : fertilizer
change to otherparameter
Rewrite technique
reference : ( manipulate variable / TC )
- ch ange the param eter of TC wi th o th erparameter
type of
size
quality
etc
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Criterion:
using past experiences or previously collected data to writeconclusions and explain events.
a) State a relevant explanation about observationb) State other relevant explanation about observation
c) State additional observation to test the inference validityd) State inference for earlier conclucion or hyphotesis
note;
i . If ob servat ion is s ta ted in quest io n, s tu dent need to givereason on ly
i i . If sp ace for obs ervation is prov ided then obs ervation m us t bewri t ten
i i i . Focus on m anipula ted var iable / wh at to chang e
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a) Free inference: State a re levant explanation about ob servat ion
Pond A Pond B
Inference 1:_______________________________________
2:_______________________________________
Observation : 1. The size of fish in pond A is small.
2. The number of fish in pond B is lessBased on any of the observations chosen, write twoinferences.
Observation:_____________________________________The s ize of f i sh in po nd A i s sm all .
Because there i s l ess food
B ecaus e the f ish are not h eal thy
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Pond A Pond B
Based on any observation given, write two inferences aboutthe difference between the size of fish in pond A and pond B
1_________________________________________________
_________________________________________________ _________________________________________________
2._________________________________________________ _________________________________________________
The s ize of f is h in p on d A is sm al ler than the s ize off is h i n p o n d B because the f ish in p on d A has less fo odcom pare to the f ish in po nd B .
The s ize of f ish in p on d A is sm aller than th e s ize off is h i n p o n d B becaus e mo st o f the f ish are no t heal thy.
b) State other relevant explanation about observation- compare inference
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A few days after Pak Abu had sprayed the grass surroundingpond B, there were a lot of fish dying.
Based on the statement above, write one inference. ________________________________________________ ________________________________________________
c) guided inference
Most f i sh in po nd B d ie because the water i s p o l lu ted .
s t imul i
Note: The ans wer g iven shou ld be re la ted to s t imu lusprov ided in ques t ion .
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X Y
Observation :
1. The amount of plant in container Y is more than thenumber of plant in container X.
2. The size of plant in container X is bigger than the size ofplant in container Y.
d) State additional observation to test the inference validity
(a) Based on the observation chosen state two inferences
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(a) Based on the observation chosen, state two inferencesabout the difference between the plants in container Xand Y.
Observation :..
.
Inference 1 :...
..
Inference 2 :.....
.
Size of plant in co ntainer X is b igg er
than th e s ize of plant in co ntainer Y
Plant in co ntainer X ob tained m ore
su nl igh t co m pare to plant in co ntainer Y.
Plan t in c on tainer X obta ined m ore
fert i l izer / w ater com pare to p lant in c on tainer Y.
Inference validity
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Inference validity
State another observation / additional observation to support thestated inference.
Example :
(b) Suggest another observation to support one of theinferences stated above.
Inference : .....
..
Observation : ....
..
Plant in co ntainer X ob tained m ore
su nl ig ht co m pare to plant in co ntainer Y.
Size of leave of plant in co ntainer X
is b igg er than th e s ize of leave of p lant in
c o nt ainer Y.
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* Relationship between variables
* The more/less(pattern)..TC.. themore/less (pattern) TM..
* (factual method)- Water and air caused iron to rust.- Water caused the bread to mould.
* As the ..TC.. more/less(pattern) the
TM..more/less (pattern) too.
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Criterion:-suggesting explaination about the relationship between
variables ( TC and TM )-suggesting explaination based on the principles of scienceor previous knowledge
-State an earlier conclusion based on inference
Note;- To f acili tate;
* ident ify TC and TM* relate the relat io ns hip betw een TC and TM
Keyword ;The more/less.the more/less. If .then..
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How to write?
Identify TC and TM
- observe the data pattern / trend
- used format given
The ___ TC the ___ TM
If ___ TC then ___ TM
or
Increase ordecrease
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Berat lilin / g 60 80 100 120 140Masa / minit 3 4 5 6 7
bekas logam TC
TMbekas logam
lilin pejal
cahaya matahari
sunlight
metal container
solid wax
weight of wax / g
melting time / minutes
The heavier the weight of w ax the lon ger the t im e needed for the wax to m el t
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(a)Write one hypothesis based on given statement.
2. State hypothesis based on given statement .
exam ple : The improper use of insecticide will causedamage to plant in long term.
The m ore impro per usage of insec t ic ide the mo re
damage wi l l happ en to p lan t in lon g te rm.
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State hypothesis based on investigation.Example :
A group of pupils conducted one investigation. Part ofthe report of the investigation is shown in the tablebelow.
5 10 15 20 25 30 35 40
10 20 30 40 50 60 70 80
Time taken to soakseedling (minutes)
Weight of seed ( gram )
(a) Write one hypothesis based on the investigation.
The long er the seeds are so aked, the heavier they
become .
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Criterion:
Write statement on meaning of data or collected information.
State the pattern from the collected information.
State the relationship between variables.
Making conclusion/summary base on collected data.
State the aim/purpose of investigation.
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Size of bread(cm 2)
The numbers offungus grown
25 5
36 17
49 29
c) What is the statement about numbers of mould grown on the bread if the size of bread is 49 cm 2 ?
The most.
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Size of bread(cm 2)
The numbers offungus grown
25 536 1749 29
d) Write the purpose (aim/objective) of theinvestigation?
To investigate the relationship between the sizeof bread and the numbers of fungus grown on thebread.
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To investigate the relationship between
(TC) and (TM ).
writing purpose / aim / objective ;
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T B
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Time Town Btemperature ( 0 C)
7 am 279 am 29
11 am321 pm 36
3 pm
315 pm 25
Predict thetemperature
for Town B at7 pm.
7 pm ????? Time
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Time Town B temperature
7.00 am 279.00 am 29
11.00 am 32
1.00 pm 363.00 pm 31
5.00 pm 25
+ 2 + 2
+ 2
+ 2
+ 2
+ 2
+ 3
+ 4
- 5
- 6
+ 27.00 pm - 718
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* increase/decrease uniformly/not uniformly
* increase then decrease
* increase uniformly then decrease notuniformly
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