Q&A - P3 Science

[P5G]

kitty2:

Please help with the below questions,got them from top school papers.I'm afraid some of the anwers are wrong.Thanks for your help


1)Animal A Shark
Whale
Dolphine

Animal B Ostrich
Penguin
Sparrow

Which animal is classified wrongly?

Shark from Animal A.
Reason - Shark is a fish. Whale and Dolphin are mammals.

2)

Which of the following does not show that plants can move by themselves?

1)Leaves sway in the breeze
2)The sunflower turns to face the sun
3)Leaves of the rain tree fold up at night
4)A mimosa plant closes its leaves when touched

Ans: (1)
Reason - The leaves are moved by the breeze.

3)

The pull of a magnet is not likely to pass through a

1)plastic wrapper
2)piece of steel plate
3)thick piece of wood
4)piece of tracing paper

Ans: (2)
Magnetism cannot pass through steel which is a magnetic material.

4)Plants take in__________and give out_______all the time
Plants take in __________and give out_______in the presence of light

oxygen , carbon dioxide
carbon dioxide , oxygen
Reason: Respiration and Photosynthesis
Do you study this in P4 Science? I am just learning this in P5 - System in Living Things - Air, breathing and respiratory system

Could someone help me with the Science questions I posted at PSLE Science? TIA.

[usaik]

Hi I need help on the following P3 top school exam paper question : -


The table below show 2 groups of flowers

Group A
Angsana
Ixora
Frangipani

Group B
Water Lily
Hibiscus
Morning Glory

The flowers are classified according to ___________________ .
(1) The colours of their petals
(2) The number of petals in each flower
(3) whether they grow singly or in bunches
(4) Whether they have big petals or small petals.

The answer provided is 3. But I thot Ixora grows in cluster whereas Frangipani and Angsana grows singly so how can they be classified into the same group? Can someone help me here?

[tianzhu]

Hi


If I am not wrong, this question is Q7 from this paper.
http://www.orlesson.org/orp/09Sc/P3-09-Sc-CA1-MahaBodhi.pdf

The WS’s answer is correct.
The flowers in Group A grow in clusters.

http://infopedia.nl.sg/articles/SIP_405_2005-01-28.html
http://www.articlesbase.com/gardening-articles/know-about-frangipanis-1390159.html
http://www.wisegeek.com/what-is-an-ixora.htm

Best wishes

[kitty2]

:thankyou: P5G

[kyp71]

Hi anyone can recommend any good science tutors or small group tuition for my P4. Prefer around clementi / west coast area/jurong or Bukit Timah. I would prefer one who has many years of experience in science teaching. Thks so much. My contact is 98440902 or email [email protected]. Mrs Wong

[Rosmary]

Appreciate if anyone can advise on the following question :


GROUP A : CAT, WHALE, MONKEY
GROUP B : GOOSE , PENGUIN , OWL

The animals are grouped according to

1- what they eat
2- where they live
3 - how they move
4- their body covering

Anyone can explain why is 4 is the answer

[rocklee]

Let me try this.


Animals in group A belong to the group of Mammals. Mammals are generally covered with fur.

Aminals in group B belong to the group of Birds. Birds are generally covered with feathers.

Make sense?

[starlight1968sg]

Yes, the ans is option 4 ie group according to their body covering.


OT: a bat is a mammal though it looks like a bird.

[Rosmary]

Thanks for your reply ! But, only cat and monkey got fur . Whale does not have fur

[starlight1968sg]

Rosmary:

Thanks for your reply ! But, only cat and monkey got fur . Whale does not have fur

whale, dolphin etc are mammals. Their females have milk for their babies.
A shark is not a mammal but a fish.