CBSE Class 8 Science Chemistry Assignment Set A

CBSE Class 8 Science - Chemistry

Chapter wise assignments are being given by teachers to students to make them understand the chapter concepts. Its extremely critical for all CBSE students to practice all assignments which will help them in gaining better marks in examinations. All assignments available for free download on the website are developed by the best teachers having many years of teaching experience in CBSE schools all over the country. Students, teachers and parents are advised to download the CBSE study material.

 

SECTION -A

1. Gold is used for making jewellery because- 1

(a) it is highly ductile (b) it is least reactive

(c) it is highly melleable (d) all the above

2. To reduce global warming, it is preferable to minimize the use of 1

(a) wind energy (b) solar cookers

(c) coal and petroleum products (d) all the above

3. Give reasons: (i) Copper is used for making electrical cables 2

(ii) Silver foil is used for decorating food stuffs.

4. Define mineral and ore .Write the names of the ores of aluminium and

iron,

2

5. (i) Name any two places in India where natural gas fields have been

discovered.

(ii) Why is natural gas considered to be a cleaner fuel?( two points)

3

6. (i) What is carboxy haemoglobin, How does it affect the various parts

of body?

(ii) State any two harmful effects of NO2.

3

7. (i) Define “Global Warming”. State it’s any one consequence. 3

(i) Name the green house gas that increases in the atmosphere when

large scale deforestation is done

8. (i) Compare the reactivities of Potassium and Gold metals towards

water.

(ii) What happens when SO2 reacts with water? Write chemical

Please click the below link to access CBSE Class 8 Science - Chemistry

Tags: 

 


Click to View or Download pdf file
Click for more Science Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Revised SOP preventive measures followed while conducting examinations

Revised SOP on preventive measures to be followed while conducting examinations to contain spread of COVID-19 issued by Ministry of Health & Family Welfare Examination centres are frequented by large number of students (as well as their parents) and staff till the...

Online Teacher Training Course on Competency based Education in DIKSHA

Competency is a set of skills, abilities, knowledge that helps an individual perform a given task in real life. Every learning should go into the imbibing of these skills to lead a productive and joyful life. The NATIONAL EDUCATION POLICY-2020 calls for shift towards...

Conduct of the practical work during the lockdown

CBSE has advised schools to follow the Alternative Calendar developed by NCERT to continue education during the lockdown through alternative modes to achieve learning outcomes. Schools have reportedly started using these calendars and other prescribed pedagogical...

Gandhiji Quiz by CBSE

CBSE has launched a Quiz on Mahatma Gandhi. The quiz portal can be accessed on Discover Gandhi portal at: https://discovergandhi.in/ DIKSHA platform (https://diksha.gov.in) and the Discover Gandhi mobile App which can be easily downloaded from Google Play Store on...

Keep your kids engaged during Lockdown

Kids are the Future of our Country! Outlines have changed and so should the formats of existence! It is the best time to teach our kids the pleasure of Self-Discipline, Self-Realization and Self-Control. To keep the future generation safe in such unpredictable...

Training of CBSE School Teachers on Olabs

Training of CBSE School Teachers on Olabs in collaboration with C-DAC Mumbai: OLabs is a platform jointly developed by the Ministry of Electronics and Telecommunications, Government of India, CDAC, and Amrita University to facilitate a virtual experience of CBSE...

×
Studies Today