May 2020

Class 7 – Science Chapter 7 : Weather, Climate and Adaptations of Animals to Climate Q.1.Name the elements that determine the weather of a place. Answer : The temperature, humidity, rainfall, wind-speed, etc. are called the elements that determine the…

Class 7 – Science Chapter 6 : Physical and Chemical Changes Q.1.Classify the changes involved in the following processes as physical or chemical changes: (a) Photosynthesis (b) Dissolving sugar in water (c) Burning of coal (d) Melting of wax (e)…

Class 7 – Science Chapter 5 : Acids, Bases and Salts Q.1. State differences between acids and bases? Answer : <thstyle=”text-align:center;”>Bases Acids 1. Acids are sour to taste. A. BAses are bitter to taste. 2. Acid turns blue litmus to…

Class 7 – Science Chapter 4 : Heat NCERT Solutions Class 7 Science Chapter 4 Heat Q.1. State similarities and differences between the laboratory thermometer and the clinical thermometer. Answer : Similarities: (i) Both thermometers consist of long narrow uniform…

Class 7 – Science Chapter 3 : Fibre to Fabric Q.1. You must be familiar with the following nursery rhymes: (i) ‘Baa baa black sheep, have you any Wool.’ (ii) ‘Mary had a little lamb, whose fleece was white as…

Class 7 – Science Chapter 2 : Nutrition in Animals Q.1.Fill in the blanks: (a) The main steps of nutrition in humans are ___________, ___________, ___________ , ___________ and ___________ (b) The largest gland in the human body is ___________.…

Class 7 – Science Chapter 1 : Nutrition in Plants Question No. :1. Why do organisms need to take food? Answer : Food is needed by all organisms for many purposes: (a) The main function of food is to help…