
PISA Like quiz
Quiz by MELONA PONGASE
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
John saw many tadpoles in a pond in his school eco-garden. He wanted to find out which type of water, pond water or tap water, is more suitable for the tadpoles to grow healthily. He caught the tadpoles and placed them in 2 identical containers as shown below. He placed the containers in the same room.
However, his teacher told him that his experiment was not a fair test.
a.) Give two reasons why his test was not a fair one.
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b.) What should he do to ensure that his tadpoles survive to become frogs?
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Small identical steel balls were put in beakers X and Y which were filled with hot boiling water. Which of the following statements are correct?•••
A. Both metal balls increase in size after a while Metal.
B. Heat from hot water is transferred to these two balls.
C. The water in beaker X lost heat slower than the water in beaker Y.
D. Steel ball in beaker X obtained heat slower than the ball in beaker Y.
(1) A and B
(2) A and C
(3) B and D
(4) C and D

Amy wants to show that photosynthesis needs carbon dioxide to take place. She intends to carry out starch tests on some leaves to help her in theinvestigation. She uses 4 similar plants of similar size and sets up the experiment as shown. All setups are exposed to the sunlight, except Set-up A, which is placed in the dark.
Which two of the set-ups should she use to make a valid conclusion?
(1) C and D only
(2) B and D only
(3) A and C only
(4) A and B only
Alice returned home one evening in her dad's car. As she got out of the car, she "saw" the moon on the car's bonnet. Which one of the following assumptions about the situation is correct?
A. The surface of the bonnet has a matted finish.
B. The bonnet must be a light colour.
C. The bonnet has a very smooth surface.
D. The headlight in the car was turned on.
(1) A, B and D only
(2) B and C only
(3) C only
(4) A, B, C and D
One of the following objects has the same energy conversion has a portable VCD player when it is used to play a movie. Which one is it?
(1) Cuckoo Clock
(2) Computer hard disk
(3) Siren of police car
(4) Oven