School levels are very critical for the development of the talent and personality of a student. Class 7 is such a stage where a student can either succeed or fail in developing as a person. Most students remain below average category and don’t have many opportunities to build a successful career. This is the reason why we see only some percentage of students getting high success.
NCERT Solutions for Class 7 Science is the study material that students can access as per their requirements and convenience. If they study the solutions along with the textbooks, they can find the best suitable answers to the questions. The availability of revision notes will make the task much easier as the students can practice and recite the answers while preparing for the exam. Reference questions and answers and previous year’s papers will help them to solve the demo question papers easily.
Chapter-wise summary
Chapter 1 – Nutrition in Plants
Nutrition refers to how an organism consumes food and how the body processes it. the food consumed is to obtain the energy for the body’s growth and upkeep. This chapter will teach students about the living & non-living organisms, cells, single & multi-cellular organisms, autotrophs & heterotrophs, photosynthesis, organelles, chloroplasts, chlorophyll, the process of photosynthesis, nutrients, symbiotic relationships, rhizobium, nitrogen fixation, parasites, saprotrophs, insectivorous plants, and cactus plants.
Chapter 2 – Nutrition in Animals
In this chapter, the students will learn about the nutrient requirement of the animal, its mode of food intake, and the utilization of the food in their bodies. The students will learn details of different ways of taking food, digestion in humans, buccal cavity, tongue, tooth decay, oesophagus or food pipe, stomach, small intestine, large intestine, anus, saliva & salivary glands, gall bladder, ingestion, digestion, absorption & assimilation in the small intestine, digestion in the grass-eating animals, cud, rumination, amoeba, and process of digestion in amoeba.
Chapter 3 – Fiber to Fabric
There are two types of fibers animal and plant fibers. Silk and wool are animal fibers. Silk is obtained from silkworms while wool is obtained from the hair of various animals. In this chapter, the students will know about fibers from plants, jute, fiber to yarn to fabric, cotton & its processing, fiber from animals, wool from animals, rearing & breeding of sheep for wool, processing fibers into wool, occupational hazards of fiber production, silk from animals, sericulture, processing silk obtained from cocoons, natural fibers, and synthetic fibers.
Chapter 4 – Heat
The status of an object which is hot or cold indicates the presence of heat. We all know that ice is cold and boiling water is hot. This temperature is heat energy within the object. The differentiation between the hot and cold comes from the difference in their temperatures. Thus the temperature indicates whether the object is hot or cold. The mean of measuring temperature is a thermometer which is of different types. The students can know the clinical thermometers, maximum-minimum thermometers, laboratory thermometers, transfer of heat, radiation, and absorption of heat.
Chapter 5 – Acids, Bases, and Salts
Acid, base and salt are the types of substances found n nature. From this chapter, students will understand the concept of acids, bases, neutralization reaction, salts, visual indicators, natural indicators, neutralization in daily life, safety measures while using acids, pH of the soil, and uses of acids & bases.
Chapter 6 – Physical and Chemical Changes
Physical and chemical are the two types of changes that might occur. Physical changes refer to the change in physical qualities of a substance while chemical alterations happen when the composition & chemical characteristics of a substance are changed. The students will learn physical vs chemical changes, physical properties, physical changes, chemical changes, metallic oxides, the reaction of metallic oxide with water, the reaction between baking soda and vinegar, observations that indicate chemical change, rusting, galvanization, and crystallization.
Chapter 7 – Weather, Climate, and Adaptations of Animals to Climate
Weather is the day-to-day state of the atmosphere at a location which results due to factors like humidity, wind speed, temperature, etc. humidity is the amount of vapor present in the atmosphere which is measured with the help of a hygrometer. In this chapter, the students can learn about fronts & weather conditions, climate, factors affecting climate, meteorology & climatology, thunderstorm, polar regions, tropical rainforests, temperate grasslands, and animal adaption.
Chapter 8 – Winds, Storms, and Cyclones
The invisible gaseous material that surrounds the earth is known as air. Air is a composition of various gases of which nitrogen is the most with 78 percent. From this chapter, the students will know the effect of air and its composition. They can also learn about air pressure, wind currents, rain, storms & cyclones, thunderstorms, thunderstorm to cyclone conversion, the structure of a cyclone, types of cyclones, safety measures & the role of advanced technology, and measures of safety from tornados.
Chapter 9 – Soil
Soil covers the most land and it is the loose material present on the top of Earth’s crust. It consists of both organic and non-organic matters which provide structural and nutritional support to vegetation. In this chapter, the students will learn about levels in soil, humans, weathering, soil profile, horizon, soil erosion, types of soil, percolation rate, moisture in the soil, absorption of water by soil, crops & its relation to types of soil, and hydroponic plants.
Chapter 10 – Respiration in Organisms
Respiration is essential for living organisms to survive. Energy from the food is released for respiration as Glucose is broken down into carbon dioxide and water with the oxygen we breathe. This chapter will enable students to know the concept of respiration & its process, diffusion, cellular respiration, aerobic respiration, anaerobic respiration, components of the respiratory system in humans, the process of respiration in humans, respiration in other organisms, and gaseous exchange in plants.
Chapter 11 – Transportation in Animals and Plants
The basic need of animals of food, water, and oxygen to survive. These needs must be reaching to each body part and it is done by the circulatory system. the waste generated within the body is excreted through the excretory system. from this chapter, the students will learn about the circulatory system, blood, plasma, RBC, WBC, blood platelets, blood vessels, arteries, veins, capillaries, heart, excretion, kidneys, and transportation in plants.
Chapter 12 – Reproduction in plants
Reproduction is a biological process in which the parents produce offspring. The offspring may or may not be the exact copy of the parent. Reproduction is done by two processes, asexual and sexual. In this chapter, the students can learn about asexual reproduction in organisms, fission, fragmentation, budding, spore formation, vegetative propagation, sexual reproduction in plants, and types of pollination.
Chapter 13 – Motion and Time
The movement of an object is called motion. There are two types of motions, uniform & non-uniform motion. This chapter will enable students to understand an introduction to motion, units & their standardization, basics of motion & its types, periodic or oscillatory motion, oscillations of a simple pendulum, speed, uniform & non-uniform motion, and units of time, units of speed, and distance-time graph.
Chapter 14 – Electric Current and Its Effects
The flow of electrons across a conductor is known as an electric current. A circuit diagram represents the electric circuit. The heating property of an electric current can be used in many ways. The material used for electric wiring or the connectors is made basis their properties of conductance and non-conductance of electricity. The students will learn conductors & insulators, heating effects of electric current, magnetic effects of an electric current, lightning & magnetism, electromagnets, the difference between electromagnets & permanent magnets, and hazards of electricity.
Chapter 15 – Light
Light occurs naturally and enhances the vision to make the object visible. It travels in a straight path. A true image can be obtained on a computer screen and a virtual image cannot obtain on a screen. In this chapter, the students will learn reflection, laws of reflection, images, range of visibility, lateral inversion, spherical mirrors, lenses, and dispersion of white light from a prism.
Chapter 16 – Water: A Precious Resource
In this chapter, the students will learn that water is an organic chemical substance that is the main constituent of the hydrosphere. Water is odouless, transparent, tasteless, and colorless. It has no calorific value or organic nutrients but is called ‘life’. The chapter also discusses freshwater & saltwater, availability of water, physical properties of water, water cycle, groundwater, and water management.
Chapter 17 – Forests: Our Lifeline
A large region of land is densely covered in trees, bushes, and other vegetation. We find a variety of wood in the world. The forests continue to grow and can regenerate. This chapter will tell students about the effects of deforestation, consequences of deforestation, conservation of forest & wildlife, flora & fauna species, biosphere & biodiversity, wildlife conservation projects, reforestation, tiger project, and migration.
Chapter 18 – Wastewater Story
Clean water is essential for a person to survive. Water that drains through toilets, showers, sinks, laundries, etc. the wastewater contains high quantities of oil suspended impurities, lather, etc. from this chapter, the students will learn about contaminants, organic impurities, inorganic impurities, bacteria, sewage, wastewater management, primary treatment, sludge, secondary treatment, better housekeeping practices, sanitation, vermi-processing toilet, and septic tanks.
Scopes/Opportunities of career for Science
Students might think of no career for science graduates nowadays but it is not true. There are opportunities still available and the scope has widened. Science graduates with a research or post-graduation background might find a very lucrative job with a satisfying salary structure. Here are the career opportunities, a science graduate can explore –
- Geology
- Astrophysicist
- Technical Writer
- Data Science
- Spacetech
- Business Analytics
- Artificial Intelligence and Machine Learning
- Blockchain Developer
- Forensic Pathologist
- Software Designing
The above are high-profile jobs but apart from these, several sectors like Food, Pharma, and Petrochemicals require Science graduates in their quality control and assurance department.
Sources for NCERT Solutions
- The students can avail of the NCERT solutions from the official website of NCERT in PDF format.
- They can also refer to other educational websites from where they can get NCERT study material and take down the notes from them.
- The solutions are also available on an e-commerce website and one can book an order online.
- The schools might help out the students to get the NCERT solutions.
- The NCERT Solutions for Class 7 Science can be bought from nearby book stores.
Importance of Science
Being scientifically strong is the biggest advantage for students not only in educational life but in real life too. the knowledge of science will make the most puzzles solved whether you are a student or an adult. Science and math go hand-in-hand and a student expert in both subjects can dream of a good future. As we know, every substance present on the earth has a scientific base and physical or chemical properties.
Automobiles, cell phones, trains, airplanes, etc are all based on science, and because of these inventions, life has become fast and bearable. Everything around us is a science and if students give proper attention to the subject they can equally enjoy it too.
Features and Characteristics of Science
There are different types of research methods and researches considered by a researcher but the results of scientific research are acceptable readily by the people. The value of scientific research is always on top and hence people do not have any doubts about your research. The major characteristics of scientific knowledge are –
- Empirical
- Objectivity
- Ethical
- Systematic Exploration
- Reliable
- Accuracy
- Predictability
- Replicated
- Controlled
- Objective/Goal
Conclusion
Class 7 Science study is arguably the most important study of a student’s life. A bright student can capitalize on the availability of such important guidance from NCERT Solutions for Class 7 Science. They understand the essentiality of building a career and for that; the foundation must be as strong as possible. while the student is in class 7 he must ensure to learn the core subjects like Science and Maths properly to build better progress in the next three levels.
Parents must start involving in the progress of their child from this class as they can concentrate more on the upcoming years better.
FAQs
Why study NCERT solutions?
NCERT solution is the one-stop study material for students at all levels. It is reported to be the best of the available options.
What is the advantage of studying NCERT solutions?
The answers are arranged by experts in the field and many reputed professors and teachers untie to work to make it easy for the students.
From where can I avail of these solutions?
As mentioned in the sources section, students can avail of these online and offline from authentic sources.
Will I get more marks if I study NCERT solutions for class 7 Science?
Study textbooks and NCERT together to better understand the subject and attend to questions. It is possible to get more marks than usual.
How many chapters are there in Class 7 Science solutions?
NCERT Solutions for Class 7 Science consists of a total of 18 chapters that cover basic Science information.
Why good marks in class 7 are important?
If you can study well and get a good score it will boost your confidence and increase your interest in the subject.
Why additional study from NCERT solutions is required?
in the educational period of life, whatever you study will be insufficient. Moreover, additional study of NCSERT solutions will give you a fair idea of the right way to answer the questions in the exam.
