HARD
8th Kerala Board
IMPORTANT
Earn 100

The table given below lists some metals. Complete the table by listing their characteristics as well as the objects which make use of those characteristics.

Metal Property Objects
Gold Lustrous, Resistant to corrosion Ornaments
Copper    
Iron    
Aluminium    

 

Important Questions on Metals

MEDIUM
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 2>Q 4
With a hammer, beat forcefully on an aluminium wire kept on a hard surface. What do you see?
MEDIUM
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 2>Q 5
Haven't you noticed aluminium foils are used to wrap chocolates and sweets? Which property of the metal is used here?
HARD
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 2>Q 6
Find out some instances where the malleability of metals is employed.
HARD
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 3>Q 1
Is metallic lustre identical for all metals? Explain.
MEDIUM
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 3>Q 2
Metallic vessels are commonly used for cooking. Which metals are commonly used to make utensils? Which characteristics of metals are made use of in such case.
MEDIUM
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 4>Q 1
The electric wires that we see on electric posts are made of aluminium. What could be the reason?
MEDIUM
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 4>Q 2
Tap gently with a spoon on a metallic vessel and an earthen pot. What difference do you find?
HARD
8th Kerala Board
IMPORTANT
Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 4>Q 3
Is it advisable to use plastic or wood to make instruments like cymbals and bells? What kind of materials are used to make them? What could be the reason for this?