Wednesday 19 September 2018

CBSE Class 9 - Cell Biology - 7 Points about Plasmolysis (#cbsenotes)(#eduvictors)

Cell Biology - 7 Points about Plasmolysis


Plasmolysis vs Flaccid vs Turgid
Credits: Wikimedia, Author: LadyOfHats

1. When a living plant cell loses water through osmosis there is shrinkage or contraction of the contents of the cell away from the cell wall. This phenomenon is known as plasmolysis
(plasma → fluid; lysis → disintegration, decomposition).


2. Only living cells, and not dead cells, are able to absorb water by osmosis.


3. Cell walls permit the cells of plants, fungi and bacteria to withstand very dilute [hypotonic] external media without shrinkage.


CBSE Class 9 - Social Science - Mid-Term Sample Question Paper - (2018-19)(#eduvictors)(#cbsenotes)

CBSE Class 9 - Social Science
 - Mid-Term Sample
Question Paper - (2018-19)

CBSE Class 9 - Social Science  - Mid-Term Sample Question Paper - (2018-19)(#eduvictors)(#cbsenotes)

Class 7 - Mathematics - Chapter - Algebraic Expressions (Very Short Questions and Answers) (#cbsenotes)(#eduvictors)

Algebraic Expressions 

(Short Questions and Answers)
Class 7 - Mathematics 

Class 7 - Mathematics - Chapter - Algebraic Expressions (Very Short Questions and Answers) (#cbsenotes)(#eduvictors)

Worksheet


Fill in the blanks
Q1: An algebraic expression containing three terms is called a __________.

Q2: Factors of -5x²y²z are : _____________________________________.

Q3: Sum or difference of two like terms is a ______________.

Q4: -5a²b and -5b²a are ________________ terms.

Q5: In the expression 2πr, the algebraic variable is ___________ and 2π is ________.

Tuesday 18 September 2018

CBSE Class 10 - English (Comm.) - Mid-Term Sample Question Paper - (2018-19)(#cbsepapers)(#eduvictors)

CBSE Class 10 - English (Comm.)
 - Mid-Term Sample
Question Paper - (2018-19)

CBSE Class 10 - English (Comm.)  - Mid-Term Sample Question Paper - (2018-19)(#cbsepapers)(#eduvictors)

Class 6 - Social Science - Our Pasts 1 - Kings and Kingdoms - Vedic Period (Key Terms)(#cbsenotes)(#eduvictors)

Class 6 - Social Science - Our Pasts I

Kings and Kingdoms - Vedic Period 

Class 6 - Social Science - Our Pasts 1 - Kings and Kingdoms - Vedic Period (Key Terms)(#cbsenotes)(#eduvictors)

(Key Terms)

1. Indo-Aryans: 
They were Aryans who migrated from Central Asia to India.

2. Sapta Sindhu: 
means the region of seven rivers. This was the region in which the Aryans first settled when they came to India.

3. Brahmavarta: 
means the land of the Gods. The region where the Aryans lived during the Earth Vedic Age was called Brahmavarta.

4. Aryavarta:
means the land of Aryans. The Gangetic Plain where the Aryans settled during the Later Vedic Age was called Aryavarta.

5. Janas: 
They were the tribes into which the Aryans were organized.

CBSE Class 8- Science - Mid-Term Sample Question Paper - (2018-19)(#cbsepapers)(#eduvictors)

CBSE Class 8- Science
 - Mid-Term Sample
Question Paper - (2018-19)

CBSE Class 8- Science  - Mid-Term Sample Question Paper - (2018-19)

Wednesday 12 September 2018

CBSE Class 9 - Chemistry - Matter in Surroundings - Short Questions Answers (#cbsenotes)(#eduvictors)

Chemistry - Matter in Surroundings

CBSE Class 9 - Chemistry - Matter in Surroundings - Short Questions Answers (#cbsenotes)(#eduvictors)

Short Questions Answers

Q1: Define matter.

Answer: Anything that has mass and occupies space is called matter.

Q2: Write your observation and conclusion for the following:
(a) When few marbles are put in a glass half filled with water.
(b) Ice is kept at room temperature.

Answer:
(a) Take some marbles and put them into the water of glass tumbler one by one. After some time you will notice that the water level crosses the mark and rises. This is because the marbles occupy space. Again weigh the glass with the marbles. You will find that the second mass is greater than the first one. This proves that marbles have mass.