Science Test Answers

P 5 Science Test ( 4 )
Systems in Living Things

Section A
1. ( 4 )
2. ( 4 )
3. ( 3 )
4. ( 2 )
5. ( 2 )
6. ( 2 )
7. ( 3 )

Section B
Question 8
Air we breathe in – contains less moisture / less carbon dioxide / not warm
Air we breathe out – contains more moisture / more carbon dioxide / warmer

Question 9
(a) True
(b) False

Question 10
(a) C : lungs, D : heart
(b) Arrows Q and S

Question 11
A- artery
B – Vein

Question 12
(a) i. windpipe, ii. lungs
(b) The air passes through the walls of the blood vessels and to other parts of the body.
(c) gills

Question 13
(a) Jogging
(b) The heart needs to supply more digested food/nutrients and oxygen to various parts of the body to produce more energy.
(c) As the rate of heartbeat increases, the breathing rate increases as well.
(d) The rate of heartbeat and breathing rate depend on the type of activity that is carried out. They will increase during vigorous activities.