CLASS- VII; CHAPTER-10 (SOIL)
1. How does temperature act as an agent of physical weathering? 2. What are the major components of soil? 3. How does air act as the agents of weathering? 4. Plants and animals being the living organisms act as the agent of physical weathering. How? 5. Discuss the various horizons of soil profile. 6. On the basis of soil texture, soil is divided in to how many categories? 7. Define the terms : i. Eluviations ii. Soil density iii. Plasticity iv. cohesion 8. Why are the earthworms known as nature’s ploughmen? 9. What is vermi-composting and how is it formed? 10. Compare the various properties of loamy soil, sandy soil & clayey soil. 11. Why does sandy soil need frequent irrigation? 12. What is soil profile? 13. How does water helps in weathering of rocks? 14. How is humus important for plants? 15. Why does soil of different areas differ in colour? 16. Which soil is considered best for the growth of plants? Why? 17. What are the different factors that affect the soil? 18. Differentiate between top soil and sub soil? 19. What are the different reasons for soil erosion? 20. We can make mud balls with clayey soil but not with sand. Why? LESSON - 8 (TRANSPORTATION IN PLANTS) 1. Explain structure and functioning of heart. 2. What are the various functions of blood? 3. How does skin act as excretory organ in humans? 4. Define the terms: a) Systole b) Diastole 5. What are the excretory organs in human? What are their functions? 6. What are the various organs consisting a circulatory system of an organism? 7. What are two processes responsible for transportation in organisms? 8. What are the conducting tissues of plant and why they are called as vascular tissues? 9. Make a diagram showing transpiration in plants. 10. Why is the outer wall of red blood cell flexible ? L-9 (REPRODUCTION IN PLANTS) 1. Define the terms: a. Reproduction b. Pollination c. Fertilization d. Vegetative reproduction 2. What is asexual reproduction? What are its various methods? 3. What are pollinators? Give examples. 4. Explain vegetative reproduction through leaves with example. 5. What are the characters of pollen grains? 6. What are the harmful effects of vegetative propagation? 7. How are the seeds dispersed by wind? 8. Why is apple termed as false fruit? 9. Explain the process of dispersal of fruits by explosion. 10. What is the difference between unisexual and bisexual flowers? 11. What do you understand by corms in plants? Give examples of such plants in which corms are found. 12. What is the special feature of the following seed which is helpful in their dispersal: a. Seeds of drumstick b. Seeds of Madar c. Seeds of Xanthium and Urena CLASS-VII ; LESSON - 5 (HEAT) 1. Explain why a stone feels very cold to bare feet in winters but a carpet in the same room feels warmer? 2. Why is digital thermometer preferred over mercury thermometer now a days? 3. Why is the box of solar cookers painted black from inside? 4. A metal ball just passes through a metal ring at room temperature. On heating the same metal ball does not passes through the ring. Explain why? 5. Why are ice boxes made as double walled? 6. What is radiant energy? What happens to it when it falls on any matter? 7. Why do houses have light colors on outer walls? 8. Why do firemen use shining brass caps? 9. Why do buildings have coated shining glass as their outer walls? 10. What is meant by land breeze? 11. When does the flow of heat from a hot object to a cold object stops? 12. Why is it better to wear dark clothes in winter? 13. What do you understand by normal human body temperature? 14. We want to keep cold water cold for long time in a container. State whether the container should be painted white or black from outside. Give reason. 15. Define the different methods of transfer of heat. 16. Why does the heat of the sun not reach us by conduction or by convection? 17. Name the two scales on which the temperature is measured. 18. Why do water pipes sometimes burst at very cold places? 19. Does the heat cause any chemical change? Give example. 20. What is the role of bricks and mud in keeping our houses cool?
52 Comments
neha
20/2/2012 11:58:16 am
true
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pari
12/3/2014 07:42:30 am
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gurmuskaan
19/8/2015 09:27:51 am
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harman preet
25/2/2012 02:46:08 am
this nice
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abhilasha
26/2/2012 07:49:26 am
it is very good for everyone
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seemron biswal
22/5/2012 02:42:43 pm
exelent
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kaavya
6/9/2012 06:44:07 am
is ur full name is reeya suri?
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8/8/2012 05:35:30 am
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kaavya
6/9/2012 06:42:52 am
very nice assignments but not for electric current
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anton
29/9/2012 01:10:53 am
nice
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suhana
21/10/2012 05:54:53 am
very good questions . IT provides easy revisions
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Abhinav
21/1/2013 09:32:14 am
very cool
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19/2/2013 10:08:12 am
found helping for the revision for exams
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fdr
12/9/2015 04:52:33 pm
stupid
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phebe
11/3/2013 07:02:32 am
nice questions
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rahul
6/8/2013 12:12:57 pm
good
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dghgjhj
6/8/2013 12:14:47 pm
same problem with me like Kavya.look into it.
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podare
17/8/2013 12:15:29 pm
nice
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meena
17/8/2013 12:17:10 pm
very nice but i need for acid,bases,salts &physical and chemical changes
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vikansh
16/9/2013 08:59:04 am
please kuch achi thing lao. na to doob ke mar jao
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akihsay
5/3/2014 11:51:10 pm
are you made doffer u don't like studies
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fdsa
23/11/2013 02:34:18 am
it's too easy
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SANNA
27/2/2014 12:27:29 pm
THERE ARE NOT MORE CHAPTERS IN IT
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pari
12/3/2014 07:50:00 am
very gooooooooooooood website
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abiha
5/6/2014 02:08:09 pm
it was good but all chapters should be there like motion and time.
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shradha
14/11/2014 09:09:02 am
This is nice but give more question
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shubha
24/11/2014 01:29:10 pm
Gooooood!
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Navina
14/1/2015 11:15:37 am
nice..........questions but i need respiration
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smitha
9/2/2015 04:41:37 am
very useful for me..... :)
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Vaishnavi
17/2/2015 12:22:48 pm
Thnx!!!! all the questions were very useful and stuff,But still looking for more chapters and all the MCQs.Still..........................I LUV IT!!!
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siddhant
21/2/2015 10:54:20 am
it should have all the chapters
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dutika
22/2/2015 09:30:34 am
it was good.. but more chapters should be there and an mcq should also be there
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aditya
1/3/2015 04:48:57 am
True
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Sai Sreeya
2/3/2015 12:44:13 pm
It is useful and as well as knowledgeable.☺
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ytyty67
11/7/2015 09:28:07 am
ghighyutyuyye6
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jackquline
11/7/2015 09:30:32 am
its good but not that much so its average!
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khushi
4/3/2016 02:48:35 pm
goooooooooooooooooood !
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