Class 6th Please note

Question number D6-----There is a flow diagram in the page number 8(Inter-relationships among the different components of the environment ) You may  draw it referring that from the book

Question number 7 ---To find the answer of this question you may refer to the text page number 5last two paragraphs.

I hope you will read and do the needful .

Keep learning and enjoying to learn

Our Environment (6th class)

Our Environment 
Note--You are advised to write these notes in your note book and draw beautiful diadrams or paste pictures of all plants, animals  nonliving objects etc. wherever necessary . 
You must write index as factors of environment in detail.
Our environment is made up of two type of factors
1 Biotic
2Abiotic
Biotic factors are those factors which are living eg plants ,animals and micro-organisms.
Abiotic factors are those factors which are non living eg wire, wood ,aluminum cans, chalk duster etc.
More about biotic  factors
Producers
Those organisms which make their own food because they have a special green matter called chlorophyll in their leaves.So the green plants are also called autotrophs .The process by which green plants make their own food is called photosynthesis.

The equation of photosynthesis is
 
                                           sunlight
Carbon dioxide + water       -----------------            glucose +oxygen
                                              chlorophyll
Consumers
Those organisms which can not make their food and depend  upon others for food are called consumers e.g. animals. They don't have green matter (chlorophyll) in them.
Primary consumers or herbivores --
Those animals which eat plants directly are called primary consumers e.g. cows ,buffaloes, goatetc.
secondary consumers or carnivores
Those animals  which eat herbivores e.g. lion ,cheetah ,fox
Decomposers -
They are micro-organisms which live dead and decaying organic matter .They decompose the organic matter and help in recycling the dead organic matter e.g. fungi and bacteria.

Important points for class 6th

Our Environment

Ans C 1 Rain water harvesting  -Rain water harvesting is a way to use and recycle rain water. The rain water is collected through pipes that take it underground and store it in tanks to be used later .In metropolitan cities like Delhi we collect rain water at the terrace and through pipes it is brought down to the tanks ,pits or wells.

This rain water can be used for various purposes after filtration. If rain water is not harvested it will be wasted and we will run short of water .

Ans.C2 We segregate the two type of wastes so that we can dispose them in an ecofriendly manner. The kitchen waste  can be made to be decomposed to form compost for the plants while the plastics can be recycled for reuse.Twin bin allows

1         the separation of waste  and 2  ecofriendly disposal and recycling of waste.

Blue bins are used for disposing off nonbiodegradable waste like plastic and green are used for disposing biodegradable wastes likes peels ,leaves etc.

 

Ans .C3   1 Swich off fans and lights when not required .

               2  Reduce the usage of Air conditioners

               3 Celebrate birthdays by gifting saplings to each other

              4  Use  less water in bathing ,brushing teeth etc.

             5  Use more of jute and cloth bags instead of polybags.

 

Ans.C4  The carbondioxide obtained from air is essential for photosynthesis.

 

Ans.C5  Repair the leaking taps and Use  less water in bathing ,brushing teeth etc.

 

Ans c6 Plastic is very harmful because  they can not be broken down by  decomposers . They get piled up and block the sewer lines. Burning of plastic produces harmful gases .So we should never use polybags rather we should use jute or cloth bags.

D Answers

1The herbivores will get more energy because they directly eat plants .

2They are black in color and do not have sweat glands to release their heat so they cool themselves in water.

3The  water that is evaporated from earth’s surface makes clouds which enter into the water cycle again.

4Decomposition of dead animals is very important for –1 recyclying of materials present in them and ---2 they help in cleaning up the earth

5  (1)Autotroph---- Those organisms which make their food on their own and donot depend upon others for food e.g. green plants .they have chlorophyll.

 Heterotrophs ----Those  organisms which depend upon others for food because they can not make their own food e.g. cows lions etc.They donot have chlorophyll.

(2) Decomposers--- The organisms which derive their nutrition from dead and decaying organic matter are called decomposers.They break down complex matter and help in recyclying e.g. fungi and bacteria

  Scavangers--- Animals and birds that consume dead bodies of animals are called scavangers e.g.—vultures,jackalsetc.They help in cleaning up the earth.

Best of luck for the Summative 2 examinations

Swami Vivekanand

Take risks in life if you succeed you will lead ,and
if you don't you may guide.

Build toilets rather than temples

Seer champions sanitation cause at Mahakumbh
Swami Chidanand Saraswati of the parmarth niketan ashram has earned sanitary distinction for the campaign he is running during the ongoing mahakumbh at Allahabad to provide clean toilets in the religious places.The seer from Rishikesh has entered a  memorandum of understanding with the defence research and design organization (DRDO)to use their technology of bio-toilets in places where proper  sanitation facilities are not available. Industry body FICCI is also supporting this endeavor.
The DRDO"S technology of bio-toilets is called biodigesters.It resolves the problem of non-decomposed human waste.The innovative system converts human waste into usable water   and gases in an eco-friendly manner.The gas generated for energy/cooking and water for irrigation .The process involves the bacteria which feeds upon the faecal matter inside the tank through anaerobic process  which finally degrades the matter and releases the gas methane which is used for cooking.
The MOU will help important religious places in Uttar Pradesh get biotoilets .
  Aclean toilet is the first thing needed  to be able to focus on anything .Sanitation is the most important socio-religious issue as well.It is an individual's first duty to keep him clean before rendering any other offerings.Therefore it is more important to first build toilets than to build temples.

Students' Health Parliament

The school adopts innovative strategies to not only engage youth as activists to promote healthy life style among their peers ,families and the community,but also to empower them to actively participate in policy discussions on issues that define their present and future health.Students parliament on health is one such strategy to effectively engage and involve youth in policy focused discussions .
The school feels great pleasure in participating in students health parliament organized by HRIDAY in collaboration with Public health foundation of India(PHFI ) in the month of April 2013
Students parliament on health is an innovative educational and advocacy tool .The aim is to place the youth in position to take responsibility and decision ,develop leadership among youth and empower youth through active involvement in fully -functioning  democratic model.
The students' health parliament will be a two day event
Venue --Siri fort Auditaurium.
Day 1- Capacity building workshop
Day 2- Students, parliament on health
Note--All the interested students(classes10th -12th) may consult Ms. Bharti Pant for the audition test .
The best speakers will be given prominent role to play in the parliament.
The media will be invited to cover this mega event and parents will be invited as observers.