EASY
8th CBSE
IMPORTANT
Earn 100

What are alloys? How are they useful to us?

Important Questions on Metals and Non-Metals

MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>Extended learning>Q 4
What are metalloids?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>Extended learning>Q 5
Name a few ores of metals like iron, copper, and zinc. Find out the location of richest reserves of some of the metal ores in India.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>Extended learning>Q 6
What is the total number of metals and non-metals known?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>Life Skill>Q 1
Rahul told his mother that he can bring back the shine of their silver cutlery using a piece of aluminium foil, warm water, salt, and baking soda. How does he do that? Explain.
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>Integration
The civilisation was based on seven metals called the metals of antiquity. What are these metals?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>HOTS>Q 1
Have you ever wondered why a particular material is chosen for making a particular item? For example, why are vessels used for cooking and heating food made of metals? Why are cooking vessels provided with wooden handles? Why is it advised to wear gloves while removing baking dish from the oven? Could a baking dish be made of simple glass?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>HOTS>Q 2
Metals are used for making electrical wires. Can you name the two properties which make them suitable for this purpose?
MEDIUM
8th CBSE
IMPORTANT
Galaxy A Course in Science Book 8>Chapter 4 - Metals and Non-Metals>HOTS>Q 3
Water from different places produces varying amounts of lather when soap or detergent are added to them. What could be the reason? Do the metallic substances present in water play any role in this?