NCERT Solutions for Class 7 Science Chapter 14Share
NCERT Solutions for Class 7 Science Chapter 14
Fill in the blanks:
a. Longer line in the symbol for a cell represents its ________terminal.
b. The combination of two or more cells is called a ______.
c. When current is switched ‘on’ in a room heater, it ___________.
d. The safety device based on the heating effect of electric current is called a _________.
Mark “T” if the statement is true and “F” if it is false:
a. To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell. (T/F)
b. When the electric current through the fuse exceeds a certain limit, the fuse wire melts and breaks. (T/F)
c. An electromagnet does not attract a piece of iron. (T/F)
d. An electric bell has an electro-magnet. (T/F)
|Chapter 1 - Nutrition in Plants|
|Chapter 2 - Nutriton in Animals|
|Chapter 3 - Fibre to Fabric|
|Chapter 4 - Heat|
|Chapter 5 - Acids, Bases and Salts|
|Chapter 6 - Physical and Chemical Changes|
|Chapter 7 - Weather, Climate and Adaptations of Animals to Climate|
|Chapter 8 - Winds, Storms and Cyclones|
|Chapter 9 - Soil|
|Chapter 10 - Respiration in Organisms|
|Chapter 11 - Transportation in Aminals and Plants|
|Chapter 12 - Reproduction in Plants|
|Chapter 13 - Motion and Time|
|Chapter 14 - Electric Current and Its Effects|
|Chapter 15 - Light|
|Chapter 16 - Water: A Precious Resource|
|Chapter 17 - Forests: Our Lifeline|
|Chapter 18 - Wastewater Story|