CBSE Class 8 Science Materials : Metals and Non-Metals Worksheets

Materials Metals And Non Metals

CBSE Class 8 Science Materials : Metals and Non-Metals Worksheets with Answers - Chapter 4 - PDF

Science in middle school is all about learning basics and understanding all that is happening around us with chapters like microorganisms, fibres, sound, friction, pollution, etc . Physics deals with energy, space, time and matter. Chemistry is the study of the properties of this matter. In contrast to this, Biology deals with all living phenomena. It is essentially the study of all life. In addition to this, Class 8 Science acts as a building block for students aiming to opt for Science in higher classes.

CBSE Class 8 Science Materials: Metals and Nonmetals Worksheets with Answers for Chapter 4 in PDF format to download prepared by expert Science teachers from the latest edition of CBSE (NCERT) books. Register online for Class 8 Science tuition on Vedantu to score more marks in your examination. This chapter falls under the ambit of Chemistry. Elements in the periodic table can be classified as metals, non-metals, or metalloids according to the properties they possess. In this chapter, metals and non-metals will be discussed at length. Students will get an overview of the general properties of such elements and their behaviour with various substances.

Vedantu is a platform that provides free CBSE Solutions (NCERT) and other study materials for students. Maths Students who are looking for better solutions can download Class 8 Maths NCERT Solutions to help them revise the complete syllabus and score more marks in your examinations.

Class 8 CBSE Chapter 4 Science - Materials: Metals and Non-Metals

Topics covered in Class 8 Science Chapter 4 - Materials Metals and Non-Metals

A wide range of topics has been covered in this chapter. Let us take a look at what they are:

Physical properties of metals and non-metals: These include hardness, lustre, sonority, malleability, ductility, and heat conduction.
Chemical properties of metals and non-metals: These include reactions with oxygen, water, acids, and bases. Displacement reactions are also studied under this sub-heading.
Uses of metals and non-metals

Important Worksheets for Class 8 Science Chapter 4

Class 8 worksheets can be very helpful in preparing the chapter. These worksheets will enable students to evaluate themselves after completing a chapter. With constant evaluation, students are bound to make fewer mistakes on the day of the final exam. Vedantu has made dedicated worksheets for each chapter of each subject of Class 8. To get access to worksheets of all the subjects, check out CBSE Class 8 Worksheets with Answers. To access the Science worksheet, in particular, click here. This worksheet provides students with answers alongside questions. This ensures that all that you need is made available to you in one place.

FAQs on CBSE Class 8 Science Materials : Metals and Non-Metals Worksheets

1. Why is sodium stored in kerosene?

Owing to sodium’s chemical properties, the element is a very reactive metal. It reacts vigorously with both oxygen and water. An exothermic reaction takes place in which sufficient heat is generated to start a fire. Thus, to prevent sodium from being exposed to moisture or air, it is stored in kerosene. In complete contrast to this, most non-metals do not react with water despite being very reactive in air. Such non-metals are thereby stored in water. Phosphorus is a non-metal that is readily stored in water to prevent contact with air.

2. What does it mean if a metal is malleable?

Some metals exhibit the property of malleability. This means that upon beating, these metals can be turned into thin sheets. A very common example in everyday life can be seen when silver foil is used for decorating sweets. Silver is beaten down into thin sheets to obtain that shape. This is also how aluminium foil is produced. This foil can be used for wrapping food as it does not react adversely with moisture or air. Only precious metals like gold, silver, platinum alongside iron and aluminium are malleable. Non-metals also do not show this property.

3. Does copper rust?

You must have observed a greenish deposit on the surface of copper vessels if they are left exposed to air or moisture for too long. This dull green coating is made of two chemicals. It is a mixture of copper hydroxide and copper carbonate. In the presence of carbon dioxide and oxygen, the copper metal reacts with water to form these substances that end up imparting the green colour we have noticed. The chemical equation for this reaction has also been provided in the NCERT Class 8 Science textbook.

4. What are some uses of non-metals?

Less than 20 elements in the periodic table are non-metals but they still play a crucial role in sustaining human life. Life-saving gases like oxygen are non-metallic. Nitrogen, phosphorus, and carbon compounds are non-metallic and are used as fertilizers that help in the production of healthy crops. Iodine is another non-metal that is used as an antiseptic for mild cuts and bruises. Chlorine is used in the water purification process. This proves that non-metals are of extreme importance and serve several uses.

5. How can I download reading material from Vedantu?

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