F2 IS First Term Revision Exercise Ans

Kowloon Tong School (Secondary Section)

F. 2 Integrated Science

First Term Examination Coverage and Revision Exercise

Name: _______________________(    )                                    Class: Form 2 _____________      

Exam Coverage

Textbook	Experiments	Workbook	Worksheet
7.1 What is air made of? (P.3 - 15)	Experiment 7.1A – E	P.1 - 25	WS01 –WS11
7.2 Burning (P.16 - 23)	Experiment 7.2A - B
7.3 How does our body obtain energy? (P.26 - 34)	Experiment 7.3A - B
7.4 How do green plants obtain energy? (P.34 - 47)	Experiment 7.4A - D
7.5 Gaseous exchange between living things and the environment (P.47 - 56)	Experiment 7.5A - B
7.6 Breathing and breathing system in humans (P.57 - 65)	--
8.1 Making electricity flow (P.96 - 99)	Experiment 8.1A - C	P.51 – 57(3.c)	WS12-WS14
8.2 Electric current (P.100 - 106)	Experiment 8.2
8.3 Voltage (P.107 - 113)	Experiment 8.3A - B

Multiple Choice Questions

1.        C	2.          A	3.        B	4.        B	5.        B	6.        D
7.        D	8.          A	9.        D	10.      C	11.      D

Fill in the Blanks

1.             glowing         

2.   (a)           fuel         

      (b)         oxygen         

      (c)  a sufficiently high temperature  (Any order)

3.   (a)           brown         

      (b)          dark blue        

4.   (a)           faster         

      (b)       carbon dioxide      

      (c)          oxygen         

5.             air sacs         

Short Question

(a)  Process X: photosynthesis                                                 

(b)  A: light energy  B: carbon dioxide  C: oxygen  D: water                      

(c)  Leaf has chlorophyll which can absorb the light energy (A) from the Sun.           

Long Question

(a)  Respiration                                                             

      Food　+　Oxygen　à　Carbon dioxide 　+　Water　+　Energy              

(b)  (i)    Intercostal muscles, ribs and diaphragm                                  

      (ii)   During breathing in, the intercostal muscles contracts, causing the ribs to move   

             upwards and outwards; at the same time, the diaphragm move downwards. Hence,

             the volume inside the chest increases, the gas pressure inside the chest decreases,  

             thus air is drawn into the lungs.