CBSE ADDA

What is soil? Soil is the crust part of the earth. It is mainly the mixture of rock particles and humus. How will you say that the soil is one of the most important natural resources   Soil is one of the most important natural resources because - It supports the growth of plants by holding the roots firmly and supplying water and nutrients. - It is the home for many organisms. - Soil is essential for agriculture. Agriculture provides food, clothing and shelter for all. - Soil is thus an inseparable part of our life. What are the factors which affect the soil? Wind, rainfall, temperature, light and humidity are the factors which affect the soil soil profile and bring changes in the soil structure. What do you mean by soil profile? A vertical section through different layers of the soil is called the soil profile. What are horizons? Each layer of soil differs in feel (texture), colour, depth and chemical composition. T...

The results of the first Central Teacher Eligibility Test ( CTET)) conducted by CBSE for recruitment of teachers to Central Government schools, were declared on Tuesday with 97,919 candidates clearing it. Of the total 79,4080 candidates registered for the test, 71,5050 had sat for the exam held on June 26. The test was conducted in 1,178 centres and 81 cities across the country and two cities abroad

Question:1. What is motion? Answer: Motion is a change in the position of an object with time. Question:2.  What is rest ? Answer:  When a body do not change its position with it said to be in rest Question:3.  How can you say that motion and rest are relative ? Answer:  We have observed that the position of stars and planets change while you remain stationary. In  reality the earth is moving too. Thus, an object which appears to be at rest, may actually be in motion.  Therefore, motion and rest are relative terms. Question:4.  What is  rectilinear motion? Answer:  The motion of an object along a straight line is called rectilinear motion. For example the motion of a  vehicle on a straight road, march-past of soldiers in a parade or the falling  of a stone. Question:5.  What is circular motion? Answer:  Motion of an object in a circular path is called circular motion eg. Motion of ...

National Talent Search Exam: 2012 National Talent Search Scheme is a flagship activity of the NCERT started in the year 1963. The purpose of the scheme was to identify talented students and nurture their talent. The NCERT conducts the National Talent Search Examination for students studying in Class VIII only. Scholarships: On the basis of the examination conducted, 1000 scholarships will be awarded for each group of students appearing for Class VIII examinations. The amount of scholarship will be Rs.500/- per month as per NTS rules. Reservation: 15% scholarships will be reserved for students belonging to the SC category, 7.5% scholarships for students belonging to the ST category and 3% for Physically Challenged Group of Students. Selection: There will be two-stage selection process for award of scholarship. For Stage-I, selection will be done by States/UTs through a written examination. Students who qualify Stage I will be eligible to appear for Stage II examination...

CBSE Class-7 Science Heat and temperature By www. jsuniltutorial.weebly.com/  Questions: Fill in the blanks : (a) The hotness of an object is determined by its   temperature. (b) Temperature of boiling water cannot be measured by a   clinical  thermometer. (c) Temperature is measured in degree   Celsius. (d) No medium is required for transfer of heat by the process of Radiation. (e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of   conduction . (f ) Clothes of   dark   colours absorb heat better than clothes of light colours. Questions:  Match the following : (i) Land breeze blows during    à night (ii) Sea breeze blows during- à day (iii) Dark coloured clothes are preferred during   à winter (iv) Light coloured clothes are preferred during - à summer Questions:  What is heat? Heat is a form of energy, entry or exit of which corr...