Fill in the blanks:
a) The average weather taken over a long time is called ___________.
b) The place receives very less rainfall and the temperature is high throughout the year, the climate of that place will be ____________ and __________.
c) The two regions of the earth with extreme climatic conditions are _____________ and _________.
Following are some of the characteristics of animals:
(i) Diets heavy on fruits
(ii) White far
(iii) Need to migrate
(iv) Loud voice
(v) sticky pads on feet
(vi) Layer of fat under skin
(vii) wide and large paws
(viii) Bright colours
(ix) Strong tails
(x)Long and large beak
For each characteristics indicate whether it is adaptation for tropical rainforests or polar regions. Do you think that some of these characteristics can be adapted for both regions?
Collect weather reports of seven successive days in the winter months (preferably December). Collect similar reports for summer months (preferably June). Now prepare a table for sunrise and sunset time as shown:
[Note : The timings filled here are for the year 2009. Students may fill this with the latest available data.]
Try to answer the following questions:
(i) Is there any difference in the time of sunrise during summer and winter?
(ii) When do you find that sun rises earlier?
(iii) Do you also find that any difference in the time of sunset during the month of June and December?
(iv) When are the days longer?
(v) When are the nights longer?
(vi) Why are the days sometimes longer and sometimes shorter?
(vii) Plot the length of the day against the days chosen in June and December.