CBSE Class 9 - Science - SA2 - Sample Question Paper (2016)

CBSE Class 9 - Science- SA2- Sample Question Paper (2016) 

CBSE Class 8 - Science - Chapter 1 - Crop Production and Management (Questions and Answers)

Crop Production and Management 

Types of Crops (based on Seasons)

Questions and Answers based on Class 8 NCERT Chapter

Q1: Define agriculture.

Answer: It is a science that deals with the growth of plants and animals for human use is called agriculture.

Q2: Define Crop

Answer: When plants of the same kind are grown and cultivated at one place on a large scale, it is known as a crop. For example, crop of wheat means that all the plants grown in a field are that of wheat.

Q3: What are agricultural practices?

Answer: All the activities which are involved in the cultivation of crops from sowing to harvesting are known as agricultural practices.

Q4: Why does India need improved agricultural practices?

Answer: Following are the reasons that India need improved agricultural practices:

i. India's population is around 1.20 Billion and it is growing faster than its ability to produce wheat and rice.
ii. To provide sufficient food to such a large population, it is required to maintain regular production and proper crop management.
iii. It requires an improvement in agricultural practices and application of latest technology.


Q5: List the seven agricultural practices.

Answer:
i.   Preparation of soil
ii.  Sowing
iii. Adding manure and fertilisers
iv.  Irrigation
v.   Protecting from weeds
vi.  Harvesting
vii. Storage

CBSE Class 6 - Science - Chapter 1 - Food: Where Does It Come From? (Worksheet)

Food: Where Does It Come From?

Different Types of Foods
(credits: wikimedia)

Worksheet

Q1: Ingredients are used to prepare food. Write down the sources of the following ingredients?

Food Item	Ingredients	Sources
(a) Idli	Rice	Plant
	Urad Dal	_____________
	Salt	_____________
	Water	_____________
(b) Kheer	Milk	Animal
	Rice	_____________
	Sugar	_____________
(c) Chicken Curry	Chicken	_____________
	Spices	_____________
	Oil	Plants/Animals
	Water	_____________
(d) Jalebi	Maida	_____________
	Saffron	____________
	Ghee	_____________
	Sugar	_____________

Q2: Give two examples of the following:

Herbivores: ____________________________________________________

Carnivores: ____________________________________________________

Omnivores : ____________________________________________________

Plants whose stem is edible: ________________________________________

Plants whose roots are edible: ______________________________________

Scavengers: _________________________________________________________

CBSE Class 10 - Biology - Heredity and Evolution - Do Not Miss These Important Definitions and Terms

Heredity and Evolution

Important Definitions and Terms

Q1: Define Genetics

Answer: Genetics is the branch of Biology which deals with the study of heredity and variation.


Q2: Define Heredity

Answer: Heredity refers to process by which certain features (inheritable) are transmitted from parent to offspring.


Q3: Define Variation

Answer: Offspring of same parents do not exactly resemble each other as well to their parents. It is called variation.


Q4: What are analogous organs?

Answer: The organs that have same functions but different structures and origin are called analogous organs. e.g. the wings of a bat and the wings of an insect are analogous.


Q5: What are homologous organs?

Answer: The organs that have the same structure, origin and components but may be performing different functions are called homologous organs. Eg: hands of a human and the forelimbs of a horse.


Q6: What are vestigial organs?

CBSE Class 7 - Science - CH17 - Forests: Our Lifeline (MCQs)

Forests: Our Lifeline

Can You Identify Trees by looking at these leaves?
(Answer given below)

MCQs

Q1: The covering of large trees that serve as a roof to shelter an area or other plants in forests is called ___________.

(a) Canopy
(b) Crown
(c) Carnival
(d) none of these



Q2: Green plants synthesize their food by the process of __________

(a) Respiration
(b) Photosynthesis
(c) Crown
(d) Reproduction



Q3: Green plants are also referred as _________

(a) Consumers
(b) Producers
(c) Decomposers
(d) Herbivores


Q4: Tigers, Lions, Leopards belong to which of the following group?

(a) Producers
(b) Herbivores
(c) Decomposers
(d) Carnivores

Who is Who (General Awareness Q and A)

Who IS Who?

General Knowledge Quiz

Q1: Who is Railways Cabinet Minister in Indian Central Government?

Answer: Suresh Prabhu



Q2: Who is Human Resource Development minister?

Answer: Smt Smriti Zubin Irani



Q3: Who is the chief Minister of Gujarat?

Answer: Anandiben Patel


Q4: Who was the first President Of India?

Answer: Dr. Rajendra Prasad

CBSE Class 6 - Science - CH 16 - Garbage In Garbage Out (Worksheet)

Garbage In Garbage Out

Landfill (Image Courtsey: pixabay)

Class 6 - Science - Worksheet

Fill In the Blanks

1. Solid waste generated in our homes is called domestic waste. It is commonly called as ___________.


2. ________ are the large open areas used to dispose solid waste.


3. ________ are called farmer's friends and are used in vermi-composting.


4. _______ is a domestic liquid waste.


5. The rotting and conversion of some materials into manure is called _____________.


Mark True or False

6. Compost is an organic matter used as fertilizer.     (T/F)