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Nutrition in plants

NCERT Solutions for class VII science chapter 1 Nutrition in plants from NCERT text book prescribes for class 7 Science.The chapter covered Photosynthesis is the process synthesis of food in the plants with the help of chlorophyll and carbon dioxide in the presence of sunlight. Water and minerals present in the soil are absorbed by the roots and transported to the leaves by the vessels.

Nutrition in animals

NCERT Solutions for class VII science chapter 2 Nutrition in animals from NCERT text book prescribes for class 7 Science.The chapter covered Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also. Write one similarity and one difference between the nutrition in amoeba and humanbeings.

Fibre to Fabric

NCERT Solutions for class VII science chapter 3 Fibre TO Fabric from NCERT text book prescribes for class 7 Science.The chapter covered The silkworm is (a) a caterpillar, (b) a larva.Choose the correct option. Make the sketch of two stages in the life history of the silk moth which are directly related to the production of silk.

Heat

NCERT Solutions for class VII science chapter 4 Heat from NCERT text book prescribes for class 7 Science.The chapter covered State similarities and differences between the laboratory thermometer and the clinical thermometer. Discuss why wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing?

Acids, basis and salts

NCERT Solutions for class VII science chapter 5 Acids, basis And Salts from NCERT text book prescribes for class 7 Science.The chapter covered Ammonium is found in many household products, such as window cleaners. it turns red litmus blue. What is its nature? Name the source from which litmus solution is obtained. What is the use of this solution?

Physical and chemical changes

NCERT Solutions for class VII science chapter 6 Physical and chemical changes from NCERT text book prescribes for class 7 Science.The chapter covered Classify the changes involved in the following processes as physical or chemical changes. State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook.

Weather, climate and adaptations of animals

NCERT Solutions for class VII science chapter 7 Weather, climate and adaptations of animals from NCERT text book prescribes for class 7 Science.The chapter covered When are the maximum and minimum temperatures likely to occur during day? Which of the two changes frequently, weather or climate? The tropical rain forest has large population of animals. Explain why it is so.

Winds, storms and cyclones

NCERT Solutions for class VII science chapter 8 Winds, storms and cyclones from NCERT text book prescribes for class 7 Science.The chapter covered State two experiences that made you think that air exerts pressure( other than given in the text). You want to buy a house. Would you like to buy a house having windows but not ventilators? Explain answer.

Soil

NCERT Solutions for class VII science chapter 9 Soil from NCERT text book prescribes for class 7 Science.The chapter covered List the difference between clayey soil and sandy soil. Sketch the cross section of soil and label the various layers. Razia conducted an experiment in the field related to the rate of percolation.She observed that it took 40 min. for 200 ml of water to percolate through the soil sample.Calculate the rate of percolation.

Respiration in organisms

NCERT Solutions for class VII science chapter 10 Respirations in organisms from NCERT text book prescribes for class 7 Science.The chapter covered Given below is a square of letters in which are hidden different words related transpiration in organisms. These words may be present in any direction-upwards, downwards, or along the diagonals. Find the words for your respiratory system.

Transportation in animal and plants

NCERT Solutions for class VII science chapter 11 Transportation in animal and plants from NCERT text book prescribes for class 7 Science.The chapter covered Match the structures given in Column I with functions given in Column II. Why is transport of materials necessary in a plant or in an animal? Explain. Does transpiration serve any useful function in the plants? Explain.

Reproduction in plants

NCERT Solutions for class VII science chapter 12 Reproduction in plants from NCERT text book prescribes for class 7 Science.The chapter covered Describe the various ways by which seeds are dispersed. How does the process of fertilisation take place in flowers? Explain the difference between self-pollination and cross-pollination.

Motion and time

NCERT Solutions for class VII science chapter 13 Motion and time from NCERT text book prescribes for class 7 Science.The chapter covered Classify the following as motion along a straight line, circular or oscillatory motion. A simple pendulum takes 32 s to complete 20 oscillations. What is the time-period of the pendulum.

Electric current and its effects

NCERT Solutions for class VII science chapter 14 Electric current and its effects from NCERT text book prescribes for class 7 Science.The chapter covered Draw in your notebook the symbols to represent the following components of electrical circuits. Connecting wires, switch in the OFF position, bulb, cell, switch in ON position and battery.

Light

NCERT Solutions for class VII science chapter 15 Light from NCERT text book prescribes for class 7 Science.The chapter covered The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind the car. The speed at which the image of the truck appears to approach the driver.

Water a precious resource

NCERT Solutions for class VII science chapter 16 Water a precious resource from NCERT text book prescribes for class 7 Science.The chapter covered There are ten tubewells in a lane of fifty houses. What could be the long-term impact on the water table? You have been asked to maintain a garden. How will you minimize the use of water?

Forest our lifeline

NCERT Solutions for class VII science chapter 17 Forest our lifeline from NCERT text book prescribes for class 7 Science.The chapter covered Explain how animals dwelling in the forest help it grow and regenerate. What are decomposers? Name any two of them. What do they do in the forest? Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.

Wastewater story

NCERT Solutions for class VII science chapter 18 Wastewater story from NCERT text book prescribes for class 7 Science.The chapter covered What is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seas. Why should oils and fats be not released in the drain? Explain. Describe the steps involved in getting clarified water from wastewater. Explain the function of bar screens in a wastewater treatment plant.



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