Q&A - PSLE Science

Academic support for Primary 6 and PSLE
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Candilicious
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Re: Q&A - PSLE Science

Post by Candilicious » Sun Jun 05, 2016 1:16 pm

Please help with this question:
Science PSLE 2015 Booklet B, question 32c
Question is: Suggest a control set up to sjow that the rise in temperature was caused by the germinating seeds.
Last edited by Candilicious on Sun Jun 05, 2016 4:01 pm, edited 1 time in total.

Candilicious
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Re: Q&A - PSLE Science

Post by Candilicious » Sun Jun 05, 2016 4:01 pm

Please help with this question:
Meife used the same seed throughout the experiment. Give 2 reasons how using the same seed helps to make experiment a fair test

SOS mum
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Re: Q&A - PSLE Science

Post by SOS mum » Tue Jun 07, 2016 3:22 pm

vvv
Q: 1687582
Subject: Science
Level: P6, PSLE
Tags: Evaporation
Source: ???
^^^

Hi, please help me in the following question:
Many thks and God Bless:)

In some open-air restaurants, water mist systems are used to cool the surrounding air. Tiny water droplets are produced in a form of mist.

(i) Explain how the water droplets help to cool the surrounding air.
(ii) Tiny water droplets are better than larger ones. Why?
(iii) Explain why some water mist systems are fitted with fans

Fly2high
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Re: Q&A - PSLE Science

Post by Fly2high » Thu Jun 16, 2016 3:22 pm

vvv
Q: 1690344
Subject: Science
Level: P6, PSLE
Tags:
Source: ???
^^^

hi all

Pls help on the attached question.
Image

Ender
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Re: Q&A - PSLE Science

Post by Ender » Thu Jun 16, 2016 4:38 pm

vvv
A: 1687582
Subject: Science
Level: P6, PSLE
Tags: Evaporation
Source: ???
^^^

This question test the concept of evaporation

Things to note about evaporation,
1. It takes away heat from surrounding. The faster it evaporates the more heat it takes away.

Things that affect the rate of evaporation
1. Higher temperature (Not relevant to this question)
2. More surface area exposed.
3. Presence of wind

My answer,
i) The water droplets will cool the surrounding air by evaporation. As evaporation takes up heat from surrounding air.
ii) For the same mass or volume of water droplets, tiny droplets will have more surface area exposed to the surrounding air compare to larger ones. Hence tiny droplets will have higher rate of evaporation and will result in b̶e̶t̶t̶e̶r̶ faster cooling of surrounding air as it takes up heat during evaporation process.
iii) One factor that increases the rate of evaporation is the presence of wind. Hence with a fan spinning and producing wind, the rate of evaporation will be higher hence result in faster cooling of surrounding air.
Last edited by Ender on Fri Jul 01, 2016 7:47 pm, edited 1 time in total.


ChiefKiasu
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Re: Q&A - PSLE Science

Post by ChiefKiasu » Wed Jun 29, 2016 12:48 pm

Thank you all for posting your questions and sharing your answers in the Academic Support threads. It has been immensely helpful to our community, especially for parents and students without access to tutors and other experts.

KiasuParents.com will be releasing a new platform to make the process of asking, answering, and looking for questions a great deal easier. These threads will be locked once the new platform comes online.

In the meantime, you may continue to post your questions and answers in these threads. To ensure that they can be properly transferred to the new platform, please include the following in your posts:

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When ANSWERING questions:
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ChiefKiasu
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Re: Q&A - PSLE Science

Post by ChiefKiasu » Wed Jun 29, 2016 12:54 pm

vvv
A: 1690344
Subject: Science
Level: P6, PSLE
Tags: ???
Source: ???
^^^

Your picture is too small to see. Please attach a larger picture.

Manga32
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Re: Q&A - PSLE Science

Post by Manga32 » Tue Aug 09, 2016 8:31 am

How to know the keywords for each question accurately in Science Paper Booklet B?

Puffer
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Re: Q&A - PSLE Science

Post by Puffer » Tue Sep 20, 2016 2:16 pm

Moderator's Note: Question has been moved to AskQ. Please use AskQ to ask your academic questions from now on. Thank you.

ljfeng
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Re: Q&A - PSLE Science

Post by ljfeng » Thu Oct 27, 2016 10:07 pm

Got the following from a teacher friend undergoing Primary School Science training: Common Misconceptions in Primary School Science.

Hope it helps in your PSLE Science Preperation

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