In this section of Class 7 science solution, we provide the solution of all exercises of all chapters of class 7 science. The students learn online and take advantage of the solution.
Chapter 1 : Nutrition in plants
Chapter 2 : Nutrition in Animals
Chapter 3 : Fibre to fabric
Chapter 4 : Heat
Chapter 5: Acids, Bases and salts
Chapter 6 : Physical and chemical Changes
Chapter 7 : Weather, Climate and Adaptations of Animals to Climate
Chapter 8 : Winds, Storms and Cyclones
Chapter 9 : Soil
Chapter 10 : Respiration in Organisms
Chapter 11 : Transportation in Animals and Plants
Chapter 12 : Reproduction in Plants
Chapter 13 : Motion and Time
Chapter 14 : Electric Current and its Effects
Chapter 15 : Light
Chapter 16 : Water : A Precious Resource
Chapter 17 : Forests: Our Lifeline
Chapter 18 : Wastewater Story
Short Notes On Chapters
NUTRITION IN PLANT: All living organisms require food. Plants can synthesise food for themselves but animals cannot. In this chapter we learn many topics like Autotrophic, Nutrient, Nutrition, Parasite, Stomata etc.
NUTRITION IN ANIMALS: Animals get their food from plants or indirectly by eating animals that eat plants. Some animals eats both Plants and animals . Animals nutrition includes nutrients requirements, mode of intake of food and its utilisation in the body. In this chapter we learn about, Absorption, Bile, Amoeba, Incisor Liver, Saliva etc.
FIBRE TO FABRIC : In Class 7 science solution Chapter 3, You will learn that some fibre obtained from plats and you also learnt that wool and silk fibre are obtained from the fleece of the Sheep or Yak. In this chapter you also learn about cocoon, scouring, Fleece, silk moth, Sericulture, Silk work etc.
HEAT: In Chapter 3 you learnt that woolen clothes are made from animals fibre and you also know that cotton clothes are made from plants fibres. We wear woolen clothes in winters. woolen clothes keep us warm and we wear cotton clothes in summer. In this chapter we will learn about, Celsius, scale, Insulation, sea breeze, Land Breeze, Convection Thermometer etc.
ACIDS, BASES AND SALTS : We use in our daily life a large number of substances, such as lemon, common salt and vinegar. in this chapter we differentiate the difference of Acids and Bases . We will also learn about Indicator, Neutralisation, salt etc.
PHYSICAL AND CHEMICAL CHANGES : Every day you come across many changes in your surroundings. These changes may involve one or more substances. Setting curd from milk and solution of sugar and water is a change. In this chapter you will also learn about Crystallisation, Physical changes, Galvanisation, Rusting etc.
WEATHER CLIMATE AND ADAPTATIONS OF ANIMALS TO CLIMATE : In this chapter we will study about the weather and climate.We will see how different forms of life are adapted to the climate of their habitat. You will also learn about Adaptation, maximum temperature, Tropical region , Migration etc.
SOIL : Soil is one of the most important natural resources. It provides anchorage to the plants and supplies water and nutrients. It is the home for many organism. You will learn in this chapter many term like, Humus,Sandy Loamy, Water retention, percolation etc.
RESPIRATION IN ORGANISMS : In chapter 2 you learnt that every organism are made of cells. Every cell perform a certain functions such as transport, nutrition etc. In this chapter you will learn about many terms like Aerobic Respiration, Breathing rate, Gills, Tracheae etc.
TRANSPORTATION IN ANIMALS AND PLANTS : All organisms take foods for their survival . They need to transport the nutrition, water and oxygen to various parts of the body.This phenomenon is called transportation. In this chapter you will learn about Tissue, Ammonia, Artery, Kidney, Blood etc.
REPRODUCTION IN PLANTS : The production of new individuals from their parents is known as reproduction. In this chapter you will learn about Budding, Ovule, Spore, Sexual reproduction etc.
MOTION AND TIME : You learnt that motion could be along a straight line, it could be circular or periodic. In this chapter you will learn about, Bar graph, Oscillation, Speed etc.
ELECTRIC CURRENT AND ITS EFFECTS : In this chapter you will learn about Battery, Electric bell, Fuse, Heating effect of current etc, In chaper 14 of NCERT Science Solution Class 7 you will also learn Magnetic effect of electric current , electromagnet and Electric bell.
LIGHT : You might have seen a beam of sunlight when it enters a room through a narrow opening or a hole. You may have also seen beam of light from the headlamps of the scooters, car and trains. In this chapter you will also learn about Concave lens, magnified image, Prism, Virtual image etc.
WATER : A PRECIOUS RESOURCE : “If you have the water, you can think of the future” In this chapter you will learn about Aquifer, ground water, Water table , Drip irrigation etc.
FORESTS: OUR LIFELINE : In this chapter you will learn about Canopy, Deforestation, Seed dispersal, humus, Soil erosion etc. In Chapter 17 of NCERT Science Solution Class 7 you also learn about importance of forest and uses of the forest.
WASTEWATER STORY : In this chapter of Class 7 science solution you will learn about Aeration, Contaminant, Sanitation, Sewerage , Sludge, Sewer, Biogas etc.