How do you know whether an object is made of metal? By testing its hardness By heating

There are some physical properties which are specific only for metals. Therefore, we can say whether an object is made of a metal using the following ways, By testing its hardness. By heating. By identifying whether the given object is malleable or ductile by hammering it or by drawing it into wires. By seeing the lustre of the object. By testing the sonority of the object.

E M B I B E

Science for Class 8 - Part 1>Chapter 7 - Metals>Extended activities>Q 3

MEDIUM

8th Kerala Board

IMPORTANT

Earn 100

Find out the metal mentioned in the following case.

Metals have high density. Which is the densest metal?

Important Questions on Metals

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8th Kerala Board

IMPORTANT

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

Aren't you familiar with the arrangement of elements in the periodic table? Try to list from the periodic table some of the elements that are familiar to you.

Hydrogen
Iron
Gold
_____
_____

Are there metals present in the given list? Which are they?

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8th Kerala Board

IMPORTANT

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

How do you know whether an object is made of metal?

By testing its hardness
By heating

MEDIUM

8th Kerala Board

IMPORTANT

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

Which are the characteristics of metals you are familiar with?

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.