Which are the characteristics of metals you are familiar with?

Important Questions on Metals

HARD

8th Kerala Board

IMPORTANT

Science for Class 8 - Part 1>Chapter 7 - Metals>Exercise 2>Q 3

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

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?