Exercise

 Question:

1. Snake gets the energy from:
A. Rat
B. Grasshopper
C. Eagle
D. Paddy




2. Which of the following is a producer?
A. Rat
B. Eagle
C. Chicken
D. Paddy




3. How many food chains are there in this food web?
A. Three
B. Four
C. Five
D. Six




4. Which of the following animals in the food web are herbivores?
A. Grasshopper, rat
B. Chicken, rat
C. Snake, eagle
D. Eagle, grasshopper






Energy

1.What is the main source of energy?
   A. The Sun   B. Wind   C. Food   D. Battery

2. Why do we need to use energy wisely?
    I. Save cost
    II. Avoid wastage
    III. Reduce pollution
    IV. Protect our life
    A. I and II only                    C. II, III, and IV only
    B. I, II and III only               D. I, II, III and IV

3. Which of the following are the advantages of renewable energy resources?
    I. Cheaper
    II. Non-polluting
    III. Readily available
    IV. Can be replenished
    A. I and II only                     C. II, III, and IV only
    B. I, II and III only                D. I, II, III and IV

4. Which of these appliances does not involve the use of heat energy?
     A. Hair dryer   B. Iron   C. Rice cooker   D. Electrical fan

 

Plant Survival

1.Which of following animals hides its eggs to ensure its survival

A. frog B. prawn C. cockroach D. hen

2. Which of followin g fruits is dispersed by wind?

A. coconut B. okra C. kapok D. pong-pong

3. Rambutans are dispersed by animals because of the following characteristics

I. Brightly coloured

II. Edible

III. Have smell

IV. Have hair

A. I, II and III only   C. II and IV only

B. I, III and IV only   D. II and III only

4. The characteristics of seed below are suitable for _____ dispersal.

  ·light ·small ·dry

A. Water   C. explosive mechanism

B.      Wind   D.animal  

 Constellations 

1.A group of stars that form a certain pattern in the sky

The statement above refers to

A．sun B. moon C. earth D. constellations

2.Constellations are important because they

I. give off light,

ii. show directions,

iii. indicate the time to plant crops

iv. indicate the time to harvest crops,

A. i and ii only   C. i, ii and iii only

B. I and iv only   D. ii, iii and iv only

3. The constellation in the diagram below refers to:

A.      Orion

B.      Scorpion

C.      Big Dipper

D.     Southern Cross

4. A fisherman who lost his direction wants to travel south. Which of the following constellations does he need to look for?

   A. Southern Cross

   B. Orion

   C. Big Dipper

   D. Scorpion

5.

(a)    Name the constellation shown.

(b)    Describe the constellation that you named in (a).

(c)    State the importance of constellations.