Cantonment Public School & College, Saidpur
Home CT - 01/2020 Class: Five (English Version)
Sub: Elementary Science
Time: 40 minutes Full Marks: 20
[NB: Answer all the questions]
1. Fill in the blanks: 1×10=10 a. We can---natural resources by using less energy, reusing and recycling.
b. Green house is such kind of house which ---heat inside it.
c. ---is the number of people per square kilometer land area.
d. ---is burnt in power plants and factories to produce more electricity and goods.
e. Germs spread faster in --- population.
f. --- increases the risk of natural disaster.
g. Population growth has several---on the environment.
h. An --- is the layers of air that surround Earth’s surface.
i. The size of the cyclone is ---km.
j. Nor’wester is the vertically grown-up convective cloud called --- 2. One word Answer: 1×10=10 a. What is called the long period of dry weather?
b. How often are censuses conducted?
c. Today’s humidity is 78%. In this case, what will you have to carry at the time of your going to school?
d. What may be caused in Bangladesh due to low pressure in the Bay of Bengal?
e. What is used to build a green house?
f. Which gas causes global warming?
g. What is the reason of raising the level of sea water in Bangladesh?
h. How many kinds of resources do we use?
i. Give one example of a non-renewable resources.
j. What will you use as an alternative source of energy to conserve natural resources?
