Grass eating animals are called ruminants.They have a special four chambered stomach.The chamber are called rumen, reticulum,omasum and abomasum.these animanls while eating their food do no chew it first instead swallow it quickly. later at leisure they bring back the from the rumen to the mouth for chewing.this is called 'chewing the cud'. This is also called rumination.
In rumen and reticulum there are numerous micro oganisms that help in partial digestion of cellulose of plant materials. Now the food passes to omasum where water in the food is partially absorbed and finally the food reaches at abomasum which is equivalent to human stomach in funtion .
Dear students this is the next topic we are going to start in Biology as soon as the school reopens so just go through it. Goodbye for now
Sunday, July 5, 2009
Tuesday, June 23, 2009
Welcome back to school
Dear students,
Now get ready to come back to school,I hope you must have spend your holidays fruitfully.If not you still have some holidays left so do the needful so that you won't regret it later that you have not spend your holidays fruitfully.Hope to see you soon.
Now get ready to come back to school,I hope you must have spend your holidays fruitfully.If not you still have some holidays left so do the needful so that you won't regret it later that you have not spend your holidays fruitfully.Hope to see you soon.
Saturday, March 21, 2009
CHANGE OF BOOK
Dear students,
Science textbook of class vii has been changed.The new book is under publication.So please do not buy old books.All the best for coming session.
Science textbook of class vii has been changed.The new book is under publication.So please do not buy old books.All the best for coming session.
WELCOME TO THE NEW ACADEMIC SESSION
Dear students
welcome to the new academic session.Enter into the new class with a new zeal, a new enthusiasm and a resolution that this year you will work harder to improve your performance further.
MAY GOD BLESS YOU AND PROVIDE YOU WITH ALL THE SUCESS YOU DESERVE.
Good bye for now.
welcome to the new academic session.Enter into the new class with a new zeal, a new enthusiasm and a resolution that this year you will work harder to improve your performance further.
MAY GOD BLESS YOU AND PROVIDE YOU WITH ALL THE SUCESS YOU DESERVE.
Good bye for now.
Friday, January 2, 2009
REVISION ASSIGNMENT FOR IV UNIT TEST
FOOD AND MAGNETS
Q1) Differentiate between the following terms:
a)Natural magnets and artificial magnets.
b)Permanent magnets and temporary magnets.
c)Magnetic and non magnetic materials.
Q2) Name the factors on the basis of which the strength of a magnet depends upon.
Q3) With the help of an activity, explain the interaction between the two magnets.
Q4) Enlist the various properties of a magnet.
Q5) Justify the statement ‘Earth behaves as a magnet’.
Q6) What are the various ways by which you can make a magnet?
Q7) Explain the following terms:
a) Magnetic Keepars b) Magnetic compass
Q8) Name the various vitamins, their functions and the deficiency diseases caused by them.
Q9) Name the various minerals , their functions and sources.
Q10) What is obesity? Give the various reasons responsible for it.
Q11) Give full form of PEM. Name the two disorders of PEM.Also give symptoms
of each one of them.
Q12) How does proteins affect our health?Explain.
Q1) Differentiate between the following terms:
a)Natural magnets and artificial magnets.
b)Permanent magnets and temporary magnets.
c)Magnetic and non magnetic materials.
Q2) Name the factors on the basis of which the strength of a magnet depends upon.
Q3) With the help of an activity, explain the interaction between the two magnets.
Q4) Enlist the various properties of a magnet.
Q5) Justify the statement ‘Earth behaves as a magnet’.
Q6) What are the various ways by which you can make a magnet?
Q7) Explain the following terms:
a) Magnetic Keepars b) Magnetic compass
Q8) Name the various vitamins, their functions and the deficiency diseases caused by them.
Q9) Name the various minerals , their functions and sources.
Q10) What is obesity? Give the various reasons responsible for it.
Q11) Give full form of PEM. Name the two disorders of PEM.Also give symptoms
of each one of them.
Q12) How does proteins affect our health?Explain.
REVISION ASSIGNMENT FOR IV UNIT TEST
HEALTH AND DISEASES
Q1) Giving examples, differentiate between communicable and non communicable diseases.
Q2) Define the term immunity.
Q3) Give full form of
a) ICDS b) PEM
Q4) Recretion plays an important role in keeping a person healthy.Explain.
Q5)Name the 5 factors which plays an important role in an individual’s health.
Q6) Why is parboiled rice more nutritive than polished rice?
Q7) What is obesity? How does it affects a person’s health.
Q8) What are biological pollutants? Give examples.
Q9) Enlist some ways by which communicable diseases spread through.
Q10) Name the two disorders of PEM.Also give symptoms of each one of them.
Q1) Giving examples, differentiate between communicable and non communicable diseases.
Q2) Define the term immunity.
Q3) Give full form of
a) ICDS b) PEM
Q4) Recretion plays an important role in keeping a person healthy.Explain.
Q5)Name the 5 factors which plays an important role in an individual’s health.
Q6) Why is parboiled rice more nutritive than polished rice?
Q7) What is obesity? How does it affects a person’s health.
Q8) What are biological pollutants? Give examples.
Q9) Enlist some ways by which communicable diseases spread through.
Q10) Name the two disorders of PEM.Also give symptoms of each one of them.
Wednesday, September 17, 2008
Revision Assignment for class vii
Q1)Mention the various ways by which qualitative loss in the nutritive value of a food item may occur.
Q2)Name the three food groups and the nutrients present in them.
Q3)Identify the following :
a)Sense organ having receptors for touch,pain and pressure
b)Part of brain which controls thinking
c)Hormone which controls blood sugar level
d)Phytohormone responsible for flowering
Q4)What is food fad?
Q5)Give the function of following
a)Iron
b)Vitamin B
c)Iodine
d)Vitamin K
e)Roughage
f)Vitamin A
Q6)Draw a well labelled diagram of neuron.
Q7)You have accidently put your foot on a sharp object.What happens.Explain your answer with the help of reflex arc.
Q8)Give reasons for the following :
a)Pituitary is called the master gland
B)Adrenaline is called the hormone of fight, fright and flight
Q8)Explain the different type of responses by taking suitable examples.
Q2)Name the three food groups and the nutrients present in them.
Q3)Identify the following :
a)Sense organ having receptors for touch,pain and pressure
b)Part of brain which controls thinking
c)Hormone which controls blood sugar level
d)Phytohormone responsible for flowering
Q4)What is food fad?
Q5)Give the function of following
a)Iron
b)Vitamin B
c)Iodine
d)Vitamin K
e)Roughage
f)Vitamin A
Q6)Draw a well labelled diagram of neuron.
Q7)You have accidently put your foot on a sharp object.What happens.Explain your answer with the help of reflex arc.
Q8)Give reasons for the following :
a)Pituitary is called the master gland
B)Adrenaline is called the hormone of fight, fright and flight
Q8)Explain the different type of responses by taking suitable examples.
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