Read and download free pdf of CBSE Class 7 Geography Our Changing Earth Worksheet Set E. Students and teachers of Class 7 Social Science can get free printable Worksheets for Class 7 Social Science Our Environment Chapter 3 Our Changing Earth in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 7 students should practice questions and answers given here for Social Science in Class 7 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 7 Social Science Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 7 Social Science Our Environment Chapter 3 Our Changing Earth
Class 7 Social Science students should refer to the following printable worksheet in Pdf for Our Environment Chapter 3 Our Changing Earth in Class 7. This test paper with questions and answers for Class 7 will be very useful for exams and help you to score good marks
Class 7 Social Science Worksheet for Our Environment Chapter 3 Our Changing Earth
Very Short Answer Type Question
Question. What do you understand by the Atmosphere?
Answer : The earth is surrounded by a cover of air. This cover is known as Atmosphere.
Question. Name the layers of Atmosphere.
Answer : 1.Troposphere 2. Stratosphere
3. Mesosphere 4. Thermosphere (Ionosphere+ Exosphere)
Question. What do you understand by Exosphere?
Answer : The outermost layer of Atmosphere is called Exosphere. It has gases like Hydrogen and Helium.
Question. What is air pollution?
Answer : Foreign substances in the Atmosphere make air unhealthy. This is called air pollution. Smoke, dust particles and pesticides are the main sources of air pollution.
Question. Why is the temperature very high on the Equator?
Answer : The rays of the sun fall directly on the Equator. Therefore the temperature is high over there.
Short Answer Type Question
Question. What we call the lower layer of the atmosphere?
Answer : 1. The lowest layer of the atmosphere is called Troposphere. Its average height is 12 Km.
2. The entire weather phenomenon like rainfall, storm, clouds etc. takes place only in this layer.
3. The 75% of all the air, is present in this layer.
Question. In which layer of the Atmosphere the Ozone gas exists? Why is it so important?
Answer : Ozone gas exists in Stratosphere layer.it absorbs the Ultraviolet rays of the Sun, which are very harmful to the life of living beings on the earth.
Fill in the blanks
1. As we go up to the hills the temperature decreases.
2. The main sources of the temperature are Sun and internal part of the Earth.
3. The Ozone gas absorbs Ultraviolet rays.
4. The electrically charged particles are found in Thermosphere or Ionosphere layer.
5. The wireless communication system works under Radio waves.
6. Nitrogen gas is found in maximum quantity in atmosphere.
Chapter 3: Our changing earth
Q1.What are lithospheric plates?
Q2.How are earthquakes and volcanoes caused?
Q3What is a volcano?Explain with the help of a diagram.
Q4.Describe earthquake with the help of a diagram?
Q5.How are the earthquakes predicted?
Q6.How are the earthquakes measured?
Q7.Define weathering?
Q8.Discuss the work of river in detail?
Q9. Discuss the work of sea waves and glaciers?
Q10.What are mushroom rocks,sand dunes and loess?
Q11. Which processes modify the earth?
Q12. Fill in the blanks:-
a) The act of carrying away weathered particles is called______.
b) Old and coarse alluvial is called________.
c) The point where vibrations originate is clled_____.
d) The highest waterfall is_______.
Q13.What is the depositional feature of the river called?
Q14. The depositional feature formed by sea waves is called________.
Q15. Why is the work of erosion and transportation more in the mountains than in the plains?
Q16. Why do human beings throw waste such as wrappers, plastic bottles, poly bags on roads and in water bodies. Such careless disposal is known as litter. Disscus in detail in the class on what you can do to keep the environment clean?
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CBSE Class 7 Social Science Our Environment Chapter 3 Our Changing Earth Worksheet
We hope students liked the above worksheet for Our Environment Chapter 3 Our Changing Earth designed as per the latest syllabus for Class 7 Social Science released by CBSE. Students of Class 7 should download in Pdf format and practice the questions and solutions given in the above worksheet for Class 7 Social Science on a daily basis. All the latest worksheets with answers have been developed for Social Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their class tests and examinations. Studiestoday is the best portal for Class 7 students to get all the latest study material free of cost.
Worksheet for Social Science CBSE Class 7 Our Environment Chapter 3 Our Changing Earth
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Our Environment Chapter 3 Our Changing Earth worksheet Social Science CBSE Class 7
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Our Environment Chapter 3 Our Changing Earth CBSE Class 7 Social Science Worksheet
Regular worksheet practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Our Environment Chapter 3 Our Changing Earth concepts. Worksheets play an important role in developing an understanding of Our Environment Chapter 3 Our Changing Earth in CBSE Class 7. Students can download and save or print all the worksheets, printable assignments, and practice sheets of the above chapter in Class 7 Social Science in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 7 Social Science MCQ Test for the same chapter.
Worksheet for CBSE Social Science Class 7 Our Environment Chapter 3 Our Changing Earth
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