Q&A - P4 Science

[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.

[Michaelia0816]

air can be compressed!

[Michaelia0816]

Do you know that air trapped in the cup prevents the water from entering it, pushing the water level higher! Which shows that the property of the experiment is air take up space.

[smartmummy]

Hi

q2) a&b matter is something has mass and volume
Q23)answer2
Mass increased, for the volume bit confused but go with theory,volume is occupies the space.

[smartmummy]

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?

Pq is magnet as it rest always north-south direction.
Another tu rest in different direction means (i assume after magnet hanging) tu is not a magnetic material.
Answer 4.