Q&A - PSLE Science

[meimeitan]

Hi TianZhu


Thank you.

[tianzhu]

meimeitan:

Hi TianZhu


Thank you.

Hi

You're welcome.

Best wishes

[meimeitan]

Hi Everyone


I am busy with posting questions here this morning. Thanks for all experts’ effort. I learn a lot.

The science question is as follow:

Group X envelope and ballon
Group Y cheese and silk
Group Z thread disposable cup

Which one of the above items is grouped incorrectedly?

The answers provided as:

(1) envelope
(2) cheese
(3) disposable cup
(4) thread

Thanks.

[jacz]

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[meimeitan]

Hi


Anyone can solve the following question:

Group X envelope and ballon
Group Y cheese and silk
Group Z thread and disposable cup

Which one of the above items is grouped incorrectedly?

The answers provided as:

(1) envelope
(2) cheese
(3) disposable cup
(4) thread

Thanks.

[mrswongtuition]

meimeitan:

Hi


Anyone can solve the following question:

Group X envelope and ballon
Group Y cheese and silk
Group Z thread and disposable cup

Which one of the above items is grouped incorrectedly?

The answers provided as:

(1) envelope
(2) cheese
(3) disposable cup
(4) thread

Thanks.

Group X: From plants
Group Y: From animals
Group Z: Manmade

My answer: Thread
However, take note that 'thread' is very vague. Thread can be silk thread, cotton thread, nylon thread, polyester thread, etc. I'm assuming it's the most common - cotton.

[meimeitan]

Hi Mrs Wong


thanks. :lol:

[tianzhu]

Hi meimeitan


You may end up with different answer depending on the grouping.

If you use natural material instead of man-made as the group heading, then disposable cup is the odd one out. That is assuming disposable cup is made of man-made material.

Is your question from past years papers?

Best wishes

[atutor2001]

tianzhu:

Hi meimeitan


You may end up with different answer depending on the grouping.

If you use natural material instead of man-made as the group heading, then disposable cup is the odd one out. That is assuming disposable cup is made of man-made material.

Is your question from past years papers?

Best wishes

I think the heading cannot be \"natural material\" because there will be overlap as \"from animal\" and \"from plant\" may also be classified as \"natural material\".

[Belle2011]

A general question here:

Where are the stomata found on the leaves of water plants? Are they still found mainly on the underside of the leaves?
WHY ?
Thank-you.

Cheers,
Belle.