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CBSE, Grade 7, Science

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  • CBSE
  • Class 7
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  18 chapters

Chapter1


Nutrition in Plants

Msvgo's Chapter 1 Nutrition In Plants assists students in thoroughly understanding the concepts. Nutrition in plants is an excellent conceptual chapter for students of Class 7. Students can access these Solutions, which will help them develop a solid foundation in plant nutrition. Students can use the Msvgo App to improve their understanding, grasping power, and fundamental abilities and can be used by students to help them prepare for academic and competitive exams. They can learn more about Nutrition in Plants, utilising the app's visualisations and animated films.

 

The solutions provided are equally effective for a student because they are accessible from anywhere, at any time through the app. As a result, their grades will improve, and they will grasp concepts more effectively.

Topics Covered in Class 7 Science Chapter 1 Nutrition In Plants Introduction to Nutrition In PlantsMode of Nutrition In PlantsAutotrophic Mode of NutritionPhotosynthesisOther modes of Nutrition In PlantsLet's Learn about these heterotrophic modes of nutrition in detail:Exercise Questions of NCERT Solutions for Class 7 Science Chapter 1 – Nutrition In PlantsFill in the blanks:Critical Elements of the NCERT Solutions of Class 7 Science Chapter 1 Nutrition In Plants
Chapter2


Nutrition in Animals

The following Topics and Sub-Topics are covered in this chapter and are available on MSVgo:

IntroductionDifferent Ways of Taking FoodDigestion in HumansDigestion in Grass-Eating AnimalsFeeding and Digestion in AmoebaConclusionFAQs
Chapter3


Fibre to Fabric

Human beings' fundamental needs include food, shelter, and clothes. Let us talk about clothing and why it is significant. Clothes protect our bodies from the environment. They protect us from pest bites and enhance our appearance. People dress differently depending on where they are and what the weather is like. Clothes are created from a variety of materials. Cotton saris are made of cotton, leather jackets are made of leather, sweaters are made of wool, and so on.

People dressed in bark, leaves, and animal fur during the beginning of mankind. When humans first settled down as farmers, they wore garments made of braided vines and animal fleece. Flax and cotton were then woven into clothing in the next step. People just draped the cloth to cover themselves at the time. Only with the invention of the needle did people begin to wear sewn clothing. Even today, in ancient civilizations such as India, individuals wear unstitched clothes such as turbans, saris, and dhotis.

Fiber is a material that comes in the shape of a thin and continuous thread. Yarn is a drawn and twisted strand of fiber used to manufacture fiber. Fabrics are formed of yarns, while yarns are made of fibers. A loom is used to weave cloth out of yarn. A loom may be either a power loom or a handloom. Clothes are made from fibers. Two strands are used together, one lengthwise and the other across. Weft refers to the crosswise yarn.

In this chapter, students learn about fabrics like wool and silk – how they are made using animal fibers, the process of extraction of silk. Fibers are found in both plants and animals. Natural fibers account for more than half of all fibers produced. Cotton, hair, fur, silk, and wool are examples of natural fibers. Other fibers are produced. Manufactured fibers are classified into two types: regenerated fibers and synthetic fibers. Regenerated fibers are created by processing natural resources to build a fiber structure. Regenerated fibers, also known as cellulosics, are made from the cellulose found in cotton and wood pulp. Rayon and acetate are two of the most prevalent regenerated fibers.

Synthetic fibers are totally made of chemicals. Synthetic fibers are often more durable than natural or regenerated fibers. Thermoplastic fibers, such as synthetic fibers and regenerated acetate fibers, are softened by heat. As a result, producers may shape these fibers at high temperatures, including characteristics such as pleats and creases. If a hot iron is used on synthetic fibers, they will melt. Nylon (polyamide), polyester, acrylic, and olefin are the most common synthetic fibers.

The different types of fabrics are silk, which is a natural fiber that is created by insects as a material for nests and cocoons. Silkworms produce the most prevalent sort of silk. Silk is a material that is noted for its sheen and softness. It is formed mostly of a protein called fibroin.

Wool is a fabric made from the hair of animals such as sheep, goats, alpacas, llamas, and others. Wool materials include cashmere, angora, mohair, and others. Wool is a warm, absorbent, and long-lasting material. It is water-resistant because of the lanolin oils found in animals, and it is often used to manufacture outerwear and cold-weather clothing such as sweaters and jackets.

Cotton fabric is manufactured from plant fibers derived from the cotton plant. Cotton is a soft and fluffy substance made mostly of cellulose, an insoluble organic component essential to the plant structure. Cotton fabric is comfortable and long-lasting, and it is often used to produce t-shirts and underwear. Organic cotton, denim, and canvas are a few examples of cotton fabrics.

Linen is a durable, lightweight fabric derived from the flax plant. Linen is inherently hypoallergenic and breathable, making it an excellent fabric for summer clothing.

Jute is a coarse natural plant fiber derived from the jute plant that is used to weave garments such as burlap cloth. Jute is a popular fabric for carpets and burlap sacks.

In Chapter 3, Fiber To Fabric, Class 7 students learn about answers to questions like:

Do some of our clothes come from animal sources?

Which are these animals? 

Who rears them? 

Which parts of the animals yield the yarn? 

How is the yarn extracted? 

What kinds of clothes help us to keep warm? 

What is heat? 

What is the meaning of ‘cool’/‘cold’ and ‘warm’ ‘hot’?

Exercises of NCERT Solutions for Class 7 Fiber To Fabric Chapter 3Answers to NCERT Solution ExercisesConclusion
Chapter4


Heat

 

IntroductionExercises:Conclusion
Chapter5


Acid, Bases, And Salts

Topics Covered in this Chapter: Acids, Bases and Salts:

  1. Introduction

  2. Acids

  3. Bases

  4. Salts

  5. Natural Indicators

    1. Neutralisation in Everyday Life

    2. Frequently Asked Questions

    3. Conclusion

IntroductionNatural IndicatorsNeutralisation in Everyday LifeFrequently Asked QuestionsConclusion
Chapter6


Physical and Chemical Changes

Table of Contents

  1. Introduction

  2. Physical Changes

  3. Chemical Changes

  4. Process of Chemical Changes

  5. Rusting of Iron

  6. Crystallisation

  7. Frequently Asked Questions

  8. Conclusion

IntroductionPhysical ChangeRusting Of IronCrystallisationFrequently Asked QuestionsConclusion
Chapter7


Weather, Climate and Adaptations of Animals of Climate

 

IntroductionWhat are the weather and climate?What are the different elements of weather?Who predicts the weather?Adaptation of animals to climate?NCERT answers for class 7 science chapter 7Conclusion
Chapter8


Winds, Storms and Cyclones

Class 7th Science Chapter 8  Winds, Storms and Cyclones is a very interesting topic for students. It has some of the important concepts related to winds and storms, which are useful in real life. The syllabus for this topic is prepared by expert teachers by updating the current CBSE syllabus. Some of the topics you will learn are:

Air Exerts Pressure

Uneven Heating of the Earth Generates Wind Currents 

Pressure

Storms and Cyclones

Air Expands on Heating

How Do Thunderstorms Become a Cyclone?

 

IntroductionAir Exerts PressureUneven Heating of the Earth Generates Wind Currents Storms and CyclonesNCERT Solutions for Class 7 science chapter 8ConclusionFAQs
Chapter9


Soil

 

IntroductionSoil Formation ProcessExercises of NCERT For Class 7 Science Chapter 9NCERTSolutions For Class 7 Science Chapter 9Conclusion
Chapter10


Respiration in Organisms

Topics Covered in this Chapter

  1. Introduction
  2. Importance of Respiration
  3. Cellular Respiration
  4. Types of Respiration
  5. Respiration in Human Beings
  6. Breathing In
  7. Breathing Out
  8. Respiration in other animals
  9. Respiration in Plants
IntroductionImportance of RespirationCellular RespirationRespiration in Human BeingsFrequently Asked QuestionsConclusion
Chapter11


Transportation in Animals and Plants

Topics covered in this chapter 11 Transportation in Animals and Plants:

  1. Introduction 
  2. Transportation In Animals
  3. Circulatory System
  4. Excretion In Animals
  5. Transport of Substance in Plants
  6. Frequently Asked Questions
  7. Conclusion
IntroductionTransportation in AnimalsExcretion in AnimalsFrequently Asked QuestionsConclusion
Chapter12


Reproduction in Plants

Topics covered in the chapter - Reproduction In Plants.

  1. Introduction
  2. Types of Reproduction
  3. Parts of a flower
  4. Types of Flower
  5. Ways of Reproduction in a flower
  6. Fertilisation
  7. Fruit and seed formation
  8. Germination of Seed
  9. Frequently Asked Questions
  10. Conclusion
IntroductionTypes of ReproductionParts of a FlowerFrequently Asked QuestionsConclusion:
Chapter13


Motion and Time

Motion and Time are among the most popular concepts in Physics. The concept of motion and rest only applies to objects that have mass. Motion and time are two interdependent quantities that are written out as mathematical numbers in detail. The SI unit of speed and velocity is metres per second. These concepts are very useful in day to day applications. Some of the sub-topics taught in this chapter are mentioned below.

What is Motion?Speed Vs VelocityMeasurement of TimePeriodic MotionNCERT solutions for class 7 science chapter 13ConclusionCTA:
Chapter14


Electric Current and its effects

Ncert class 7 science chapter 14 - Electric Current and its Effects gives us critical insights into the concept of electric current and its flow. The syllabus has been prepared by expert educators and teachers to help Class 7 science students understand the concepts better.

IntroductionBatteryElectrical CircuitSymbols of Electric ComponentsCircuit DiagramThe heating effect of electric currentFuseMagnetic Effect of Electric CurrentElectromagnetPermanent Magnet vs. ElectromagnetElectric BellNCERT solutions for class 7 science chapter 14 - Science Electric Current and its EffectsConclusion
Chapter15


Light

 

What is light?What is an image?The Laws of Reflection of LightSpherical MirrorsLensesSunlightFAQs
Chapter16


Water, A Precious Resource

Important topics covered in NCERT Solutions for Class 7 Science Chapter 16 Water: A Precious Resource 

  • Introduction
  • How much water is available
  • Types of water
  • Groundwater as an important source of water
  • Depletion of the water table
  • Increasing population
  • Distribution of water
  • Increasing industries
  • Agricultural activities
  • Water management
  • Water-wise habits
  • What role you can play
  • Effect of water scarcity on plants
IntroductionHow much water is available?Groundwater is an important source of waterDepletion of water tableWater managementSummaryFrequently Asked Questions
Chapter17


Forests – Our Lifeline

 

IntroductionImportance of forestsStratification in forestsRole of forests in maintaining the balance of oxygen and carbon dioxide in the atmosphere Decomposers and their functionConcerns and issues related to forests Most important questions related to ncert chapter 7Conclusion
Chapter18


Wastewater Story

Chapter 18 of Class 7th science is about the story of wastewater. Water is essential to everyone's existence. The chapter briefly discusses the process of converting wastewater into usable water, as well as the steps to reuse and recycle wastewater. Each subtopic in Science Chapter 18 aids students in gaining a quick understanding of all the significant ideas.

Topics Covered in Class 7 Science Chapter 18 Wastewater Story

Following are the topics and sub-topics covered in this chapter.

Section Topic
1 Introduction to Wastewater Story
2 Water - Our Lifeline
3 What is sewage?
4 Water Freshens Up- An Eventful Journey
5 Wastewater Treatment Plan
6 Collection Of Wastewater
7 Physical Treatment (screening)
8 Primary Treatment of wastewater
9 Secondary Treatment of wastewater
10 Final Treatment
11 Better housekeeping practices
12 Alternative arrangement of sewage disposal
13 Sanitation at Public Places

 

Introduction to Wastewater StoryWater - Our LifelineWhat is Sewage?Water Freshens Up: An Eventful JourneyWastewater Treatment PlantCollection of wastewaterPhysical treatment (screening)Better housekeeping practisesSanitation at Public PlacesExercise Questions of NCERT Solutions for Class 7 Chapter 18 Wastewater StoryKey Elements of the NCERT Solutions of Class 7 Chapter 18 Wastewater Story

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