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Observation

Sample

River A River B

Bigger size fish Smaller size fish

Diagram 1

1. Diagram 1 shows the sizes of fish that has been caught by the two boys

at River A and River B .

( a !rite an observation based on the Diagram 1 above .

Size of the fish at river A is bigger .

( b !rite a suitable hypothesis based on the diagram above .

River A has no pollution .

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Diagram "

". #wo tea pots are used to boil water at the same time on a gas stove .

#he volume of each tea pot is $%%ml . #he boiling point of the tea pots

are stated as below &

#ea pot Boiling point

S 1% minutes

# ' minutes

( a Based on Diagram " above write an observation on the different boiling point .

!ater in pot # boils faster .

( b !rite an inference based on your answer in ( a .

i. #ea pot # less thic)ness .

ii. #ea pot # gets more fire

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* Burger ! is in good condition* Burger + has a bad smell

$. #he above diagram shows the information of a fair test .

( a !rite an observation based on the information above .

Burger + has a bad smell .

( b !rite a suitable inference based on the above diagram .

Burger + is e,posed to bacteria . - #he reaction of the bacteria .

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!ater temperature

#ime ( minutes

. #he graph above shows the temperature changes of /i0uid + .

( a !hat is your observation based on the graph above

#he highest temperature is 1%% 23 .

( b 4ive a suitable inference for the time at 11 minutes .

5t is the boiling point of water .

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'. #he diagram above shows the same type of towels with different

sizes hanged in a field . #he time for the towels to dry were recorded atthe end of a fair test .

( a !hat is your observation of the fair test

#owel + dries faster .

( b !rite an inference for the fair test above

#owel + is the smallest .

#owel +

1% minutes #owel 6

1' minutes

#owel 6

"% minutes

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#able '

1. #able ' shows information from a fair test . #he fair test is on the

seed immersed in the water and its weight .

(a State a suitable hypothesis for the above fair test .

#he highest weight of the seeds is from the $'th to % th minutes

(a 7redict the weight of the seeds at the "$rd. minutes .

1 8 '9 gram

#ime seeds are immersed 9 :inutes

!eight of seeds ( gram

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". A fair test is done to identify the number of pulley and the number of

students needed to lift "%% )g .

;umber of

pulley

;umber of students needed to lift

the weight .

1 1%

"