Q&A - P4 Science

[teh_oh]

Mychildren:

Our Q8 is 2 because my child said that option 4 is correct as all life cycle starts with fertilized egg. The answer sheet is definitely wrong. Can CNS share what is her option for this question? from teh_oh


If the egg is fertilized egg, I agreed that the answer is 2. Thanks for letting me know about this.

As for 23, my ans same as my son is 2 because the volume in the basketball is fixed when fully pumped with air. As air can be compress, even if you pump in more, the volume of air in the basketball will still remain unchanged.

Hi Mychildren,
Thanks for your explanation on Q23. I am at lost at questions relating to such.

For the Egg-Kitten-Cat question, it is tricky as I am not sure if the day cycle considers as life cycle. May need to double check with his teacher.

[Mychildren]

teh_oh,


In fact, I should thank you. If not, I'll not realize the difference between the seed leaf and first leaf. I may result teaching wrongly my son. He was telling me why I marked him wrong and I was at a lost too. Their textbook was not enough to provide enough information. Even guide book never state the difference too.

:thankyou:

[smartmummy]

I have a qn

what r the parts helps in the process of digestion?
Teeth—a
tongue–b
saliva–c

1) a&b
2)a&c
3)b&c
4)a,b,c

[Choco05]

smartmummy:

I have a qn

what r the parts helps in the process of digestion?
Teeth---a
tongue--b
saliva--c

1) a&b
2)a&c
3)b&c
4)a,b,c

I think it would be all, (4). The question states helps in the process, and not 'where digestion takes place'.

[mrswongtuition]

Choco05:

smartmummy:

I have a qn

what r the parts helps in the process of digestion?
Teeth---a
tongue--b
saliva--c

1) a&b
2)a&c
3)b&c
4)a,b,c

I think it would be all, (4). The question states helps in the process, and not 'where digestion takes place'.

\"Help digestion\" --> This means that as long as it plays a part in digestion, it helps in digestion.

Teeth: Mechanical breakdown of food into smaller pieces for digestion
Tongue: Mashes food, mixes food with saliva and rolls food into bolus before being swallowed
Saliva: Enzymes (amylase) in saliva starts to breakdown starch in food

My answer: (4) A, B and C

[teh_oh]

Mychildren:

teh_oh,


In fact, I should thank you. If not, I'll not realize the difference between the seed leaf and first leaf. I may result teaching wrongly my son. He was telling me why I marked him wrong and I was at a lost too. Their textbook was not enough to provide enough information. Even guide book never state the difference too.

:thankyou:

Hi Mychildren,

Please double confirm with your child (sometimes they are the best person to ask too :)) that we are correct (that the seed leaf is the 'fleshy portion' and not the 'leafy portion') as we are still learning too.

[Michaelia0816]

mrswongtuition:

Choco05:

[quote=\"smartmummy\"]I have a qn

what r the parts helps in the process of digestion?
Teeth---a
tongue--b
saliva--c

1) a&b
2)a&c
3)b&c
4)a,b,c

I think it would be all, (4). The question states helps in the process, and not 'where digestion takes place'.

\"Help digestion\" --> This means that as long as it plays a part in digestion, it helps in digestion.

Teeth: Mechanical breakdown of food into smaller pieces for digestion
Tongue: Mashes food, mixes food with saliva and rolls food into bolus before being swallowed
Saliva: Enzymes (amylase) in saliva starts to breakdown starch in food

My answer: (4) A, B and C[/quote]Same explanation with all of them, do read the question carefully, my answer also 4!

[smartmummy]

Thanks to all for answer my qn.

I am sure about teeth and saliva.but i had doubt about tongue.

[atutor2001]

smartmummy:

Thanks to all for answer my qn.

I am sure about teeth and saliva.but i had doubt about tongue.

I think the key word is \"process\". If I remove the details on the \"process\", the question becomes,

what r the parts that help in the process ? (of digestion)

Since the tongue does help in the \"process\" it should be one of the answers.

However, if the question is \"What r the parts that help in digestion?\", then I think \"tongue\" might not be included.

Actually I will pick (2) i.e. a & b because I don't think \"saliva\" can be considered as a \"part\" of the mouth or digestive system.

[smartmummy]

Hi atutor2001!

Thank u for the explanation.now i understood clearly.

atutor2001:

smartmummy:

Thanks to all for answer my qn.
I am sure about teeth and saliva.but i had doubt about tongue.

I think the key word is \"process\". If I remove the details on the \"process\", the question becomes,

what r the parts that help in the process ? (of digestion)

Since the tongue does help in the \"process\" it should be one of the answers.

However, if the question is \"What r the parts that help in digestion?\", then I think \"tongue\" might not be included.

Actually I will pick (2) i.e. a & b because I don't think \"saliva\" can be considered as a \"part\" of the mouth or digestive system.