Q&A - P4 Science

[Zack7]

atutor2001:

Zack7:

[quote=\"ttyh\"]In a digestive system, which organ will one find the sharpest drop in the amount of undigested food left? Why?

i don't really understand what mean by the 'sharpest drop in the amount of undigested food left'

but i guess its the intestines. because that is where your undigested food gets removed into the colon, hence there is a 'sharp drop?'

You seemed to have problem with comprehension. Allow me to explain it in simple English. \"Undigested food\" means those food that is not digested yet. \"amount of undigested food left\" means the amount of undigested food that can still be found. \"sharpest drop in the the amount of undigested food left\" would therefore mean that the decrease in the amount of undigested food that can still be found is the greatest. By the way, in case you do not know,\"sharp drop\" means greatest decrease.

Therefore, your answer is wrong, it is the stomach. Common sense will tells us that most digestion occurs in the stomach where digestive juice are added and the churning and squeezing actions of the stomach will break down the food into liquid form and into simpler substances.

Therefore, for a given amount of food eaten, if we compare the amount of undigested food at the entry to the stomach compared to the amount of undigested food at the exit of the stomach, we will find the \"sharpest drop i.e. greatest decrease.

I think it is your language handicap. No wonder you always have weird interpretations.[/quote]woah, looks like you don't understand simple english too

i already said 'i don't really understand' and i 'guess', which means i may be wrong.

i never claimed to clear anyone's doubt? lol... unlike a certain someone.

and looks like you still enjoy employing personal attacks when arguing. what a sad case. too much intellect makes you snobbish?

or did your ego get pricked?

[atutor2001]

Zack7:

woah, looks like you don't understand simple english too

i already said 'i don't really understand' and i 'guess', which means i may be wrong.

i never claimed to clear anyone's doubt? lol... unlike a certain someone.

and looks like you still enjoy employing personal attacks when arguing. what a sad case. too much intellect makes you snobbish?

or did your ego get pricked?

Just a reminder. This thread is for science. Please follow the rule of this forum and do not create a reply that has totally no bearing on science. Thank you.

[teh_oh]

Hi,

Appreciate assistance on the following question.


http://i44.tinypic.com/5lqxbm.jpg\">

Child's answer is 4 as it is not conclusive that metal bar TU is made from a magnetic material.
Ans Key: 1

Thank you.

[teh_oh]

Hi,

Appreciate assistance on the following question
http://i44.tinypic.com/htwlk5.jpg\">
Child's answer is Set up B and C.
Ans Key: Setup A and C.

Thanks.

[ttyh]

Zack7:

ttyh:

In what way is the large intestines and small intestines similar in terms of special features they have to facilitate absorption of materials?

intestines are folded in special ways to increase surface area for maximal absorption through diffusion.

Thanks. I just couldn't get this answer after googling...
I will wait for the answers back from the teacher.... :xedfingers:

[Michaelia0816]

teh_oh:

Hi,

Appreciate assistance on the following question
http://i44.tinypic.com/htwlk5.jpg\">
Child's answer is Set up B and C.
Ans Key: Setup A and C.

Thanks.

I agreed the answer key cause too much different in strength would not really compare the correct one

[teh_oh]

Hi Michaelia0816,

Thanks for your replies.

[teh_oh]

teh_oh:

Hi,

Appreciate assistance on the following question.


http://i44.tinypic.com/5lqxbm.jpg\">

Child's answer is 4 as it is not conclusive that metal bar TU is made from a magnetic material.
Ans Key: 1

Thank you.

Any one?

[teh_oh]

Hi,

Appreciate assistance on the following:-

Q: The female mosquito sucks blood so that she has enough energy to lay eggs. True/False

Child's Ans: False (because she sucks blood for nutrients, not energy)
Ans Key: True
___________________________________________

Q: Why is air classified as matter?
A: Has mass
B: Occupies space
Can be compressed

Child's Answer: A and B
Ans Key: A, B and C
_____________________________________________

http://i42.tinypic.com/17efxj.jpg\">

Child's Answer : 4
Ans Key: 2
Why?

Thanks!

[ttyh]

Hi Teh

This topic of air volume in different containers has been debated for a while until I gave up.
Looks like you are stuck with the basketball now.
I guess I have to tell my kiddo that for all questions in P4 science on volume of air in whatsoever container, whether it is inflated, compressed, the volume is the same.
Hard to swallow, but no choice.