CBSE Class 8 - HISTORY – CRAFT AND INDUSTRIES - Concept Points (#cbsenotes)(#eduvictors)

History - Chapter : Crafts and Industries

Concept Points

1. The products which are of aesthetic value and are produced by hand or by using simple tools and machines are termed as Handicraft.

2. Items of Exports – pearls, perfumes, spices, sugar etc.

3. Items of Imports – gold, copper, zinc etc.

4. A process which include the production of fabric by interlacing two sets of threads is termed as weaving.

5. The shift from manual system to machine made goods or machine system is known as Industrial Revolution.

CBSE Class 9 - Science - Chapter – 1 – Matter in our Surroundings (Revision Assignment) (#cbsenotes)(#eduvictors)

Chapter – 1 – Matter in our Surroundings

(Revision Assignment)

Q1. Why are gases so easily compressible whereas it is almost impossible to compress a solid?


Q2. Explain why diffusion occurs more quickly in a gas than in a liquid.


Q3. Explain why glycerine is more viscous than water.


Q4. Give reasons for the following –
(a) Milk is called a liquid
(b) Carbon dioxide is a gas


Q5. Both sugar and water take the shape of the container in which they are placed, yet sugar is called a solid while water is called a liquid. Explain.

CBSE Class 10 - Economics - Chapter 1 - Development (Revision Assignment) (#cbsenotes)(#eduvictors)

Economics - Chapter 1 -
Development (Revision Assignment)

Q1: What type of aspirations can development fulfill?

Q2: How idea of national development varies?

Q3: Which position was occupied by India in terms of HDI in Human Development Report 2014?

Q4: Which Index is used to compare nutritional level?

Q5: Give one major reason for which children particularly girls are not able to achieve secondary level schooling.

CBSE Class 9 - Science - Matter In Our Surroundings - Reasoning Questions (#cbsenotes)(#class9Science)(#eduvictors)

Matter In Our Surroundings  Reasoning Questions

Q1: When 20-30g of salt is added to 500 ml of water in a beaker. We see salt dissolves and disappears in water. Give reasons for this.


Q2: If we put a drop of blue ink in a beaker filled with water and leave it undisturbed. Why does the water in the whole beaker turn blue?


Q3: Give reasons for the following observation:
The smell of hot sizzling food reaches you several metres away, but to get the smell from the cold food you have to go close.


Q4: Why is a diver able to cut through water in a swimming pool?


Q5: Sponge can be compressed. Why is it a solid?

CBSE Class 6 - Science - Food: Where Does It Come From? - Extra Q & A (#cbsenotes)(#eduvictors)

Food: Where Does It Come From?

Extra Q & A

Q1: Why do we need food?

Answer: We need food
a. To get energy
b. To do work
c. To repair our body

Q2: Categorize the nutrients on the basis of their functions.

Answer: The nutrients on the basis of their functions are-
a. Energy Giving Food – Carbohydrates and Fats
b. Body Building Food - Proteins
c. Protective Food – Vitamins and Minerals


Q3: Name the food items which are the rich sources of energy giving food.

Answer: The food items which are the rich sources of energy giving foods are rice, wheat, corn, potato, sugar, bread etc.


Q4: Name the food items which are the rich sources of body building food.

Answer: The food items which are the rich sources of body building food are milk, egg, cheese, fish, beans and pulses.

CBSE Class 9/ Class 11- Biology - Nehemiah Grew - Father of Plant Anatomy (#PMtNotes)(#cbsenotes)(#eduvictors)

Nehemiah Grew - Father of Plant Anatomy

Nehemiah Grew (26 September 1641 – 25 March 1712) was an English plant anatomist and physiologist, known as the "Father of Plant Anatomy".

Nehemiah Grew (1641-1712) was practicing physician and worked as the secretary of the Royal Society, London. He began his work on the study of internal structure of the plants in the year 1664.

CBSE Class 12 - Physics - CH: Atoms and Nuclei - Cathode Rays and Its Properties (#cbsenotes)(#class12Physics)(#eduvictors)

Cathode Rays and Its Properties

Image Credits: Wikipedia, Author: Theresa Knott

Q1: What are Cathode Rays?

Answer: are streams of electrons observed in vacuum tubes. These rays were discoevered by a German physicist Johann Wilhelm Hittorf, and were named in 1876 by E. Goldstein, or cathode rays. In 1897, British physicist J. J. Thomson experimented and showed that cathode rays were composed of negatively charged particles, called electrons. Cathode rays are also called as electrons beam.

When a potential difference of 10 to 15 kV is applied across the two electrodes of a discharge tube and pressure is reduced to 0.01mm of mercury, the rays known as cathode rays are emitted from the cathode. These rays are independent of the nature of the gas in the discharge tube and their direction of propagation is not affected by the position of the anode.


Q2: What are the properties of Cathode Rays?