Science
Answer the questions given below in your science notebook. Refer pg no:
79 of unit 7 of your study material. Submit the same on Wednesday, 15/2/17.
Water
Energy
1.
___________________
of the world is covered with water in the form of
________________,
____________________ and ____________________.
Water or ________________________is a renewable source of energy. The
_____________________ the river the _________________ energy that can be
harnessed, so in some parts of the world large rivers are used by
_______________________________to make electricity. In hydroelectric stations,
water is stored in ____________________. Water flows downhill through large
pipes and through the__________________. The falling water _________________the
turbines, _________________________the shaft, and _________________the
generator to make___________________.
2.
Draw
a diagram explaining the production of hydro electricity.
Hindi
Read Lesson- 13 for an oral review on 14.2.17, Tuesday
Arabic
كتابة ثلاث كلمات رسمت فيهاالهمزة على ألف ووضعها في جمل
مفيدة
