CBSE Class 8 Science - Revision (3)

Scroll down for PDF

CBSE Class 8 Science - Revision (3)

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.

 

PHYSICS

1. Define the following terms

a. Latent heat of vaporization

b. Latent heat of fusion

2. Why do soft drink bottles cool better in ice than in water?

3. Why are the burns caused by steam more severe than those caused by

boiling water ?

4. When we go for vaccination, the Dr. rubs a little spirit on our skin and we immediately

feel very cool at that spot. Why?

5. Observe the given table

substance Specific heat capacity(cal/g°C)

steel 0.11

aluminum 0.21

100 g of each substance is heated from 30°C to 40°C.

a) Calculate the amount of heat required in each case

b) Which metal requires the greatest amount of heat and which one the least?

CHEMISTRY

1. Explain the formation of Oxide ion from oxygen atom. Show it as

representation in word form as well as diagrammatic form

2. Write any five common radioisotopes and their uses.

Please click the below link to access CBSE Class 8 Science - Revision (3)

Tags: 


Click on the text For more study material for Science please click here - Science

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

Simple tips to Excel in Examinations

We are entering the last quarter of the Academic Session. With examinations just around the corner, I am sure all of us are carrying a mixed bag of Stress, Excitement, and Anxieties!! So, first and foremost- Let’s be Positive and Futuristic! It’s most important to...

CBSE Board Exam Date Sheet of class 10th and 12th

The Central Board of Secondary Education (CBSE) released the Date sheet of Class 10 and Class 12th 2020 examination on the official website cbse.nic.in. The board examination of Class 12 will be conducted from 15 February to 30 March 2020, while the board examination...

CBSE Counseling for Board exam 2020 starts today

The 23rd psychological Counseling starts 1st February (today) for The Class10 and Class12 CBSE students and their parents, by the Central Board of Secondary Education (CBSE).    This Counseling service is cost-free and this counseling service will be available every...

×
Studies Today