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 CHAPTER 1 NUTRITION IN PLANTS Here is some important points and answer of chapter 1 NUTRITION IN PLANTS NCERT science of class 7 which helps students to better understand topics of chapter 1 NUTRITION IN PLANTS. Keywords:- 1) Autotrophic:- The mode of nutrition in which organisms  organism can make their food by them self from simple substance are called autotrophic. 2) Chlorophyll:- Green pigment which present in leaves and captures the energy of sunlight is called Chlorophyll. 3)Heterotrophs:- Organisms take food from others like plants and other animals are called Heterotrophs. 4)Host:- Organisms on which other organism live and take their nutrients are called host. 5)Insectivores:- Those plants which take their some nutrients from insects by trapping them are called Insectivores. 6) Nutrient:- Energy giving components like Protein, carbohydrate etc are called nutrients. 7) Nutrition:- Nutrition is mode of take food  by  an organism and its utilisation by bodybuilding. 8) Parasite:

 Chapter 14 ELECTRIC CURRENT AND ITS EFFECTS Here is answer of chapter 14 ELECTRIC CURRENT AND ITS EFFECTS NCERT science of class 7 which helps students to better understand topics of chapter 14 ELECTRIC CURRENT AND ITS EFFECTS. Exercise Questions- Ques 1.Draw in your notebook the symbols to represent the following components of electrical    circuits: connecting wires switch wires, switch in the OFF position, bulb, cell, switch in the ON position and battery. Ans. Ques 2. Draw the circuit diagram to represent the circuit shown in figure. Ans. Ques 3. Figure 14.22 shows four cells fixed on a board. Draw  lines to indicate how you will connect their terminals with wires to make a battery of four cells. Ans. To construct a battery, the negative terminal of one cell should be connected to the positive terminal of the other cell. Therefore the cells should be connected as shown in figure. Ques 4. The bulb in the circuit shown in Fig 14.23 does not glow. Can you identify the problem? Make n

 Chapter 18  Waste Water Story Here is some important points and answer of chapter 18 Waste Water Story NCERT science of class 8 which helps students to understand topics of chapter.The answer of textbook question of CHAPTER 18 Waste Water Story of CLASS 8 SCIENCE NCERT help students to better understand the topics of chapter. Important Points:- 1) Aeration:- Cleaning of waste water with the help of moving air instrument is called aeration. 2)Aerobic bacteria:- Bacteria which do respiration in the presence of oxygen is called aerobic respiration. 3) Anaerobic Bacteria:- Bacteria which do respiration  in the  presence of oxygen is called anaerobic respiration. 4)Biogas:- Gas which release during waste water treatment from sludge and use as fuel is known as biogas. 5) Contaminant:- Impurities or waste particles is called contaminant. 6) Sanitation:- Proper disposal of  waste and human extract without harming environment is called sanitation. 7)Sewage:- Waste or used water which released

 Chapter 17 Forests:Our Lifeline Here is some important points and answer of chapter 17 Forests: Our Lifeline NCERT science of class 8 which helps students to understand topics of chapter.The answer of textbook question of CHAPTER 17 Forests:Our Lifeline of CLASS 8 SCIENCE NCERT help students to better understand the topics of chapter. Keynotes of CHAPTER 17 OF CLASS 8 SCIENCE: a)Canopy:- The branches of tall trees look like a roof over other plants in forest  are called  canopy. b)Crown:- Branchy part of a tree above the stem is known as  crown. c)Composers:-   Microorganisms who convert dead and waste of plants and animals into humus are called Composers. d) Deforestation:- Removing or cutting down of  forests is called deforestation. e)Humus:- Dead plants and animals convert into dark colour  soil is called Humus. f) Regeneration:- Growing again plants is called regeneration. g)Seed Dispersal: Moving of seeds from one to another place by different means like animals,birds and air e

 CHAPTER 13 MOTION AND TIME Here is some important points and answer of chapter 13 MOTION AND TIME NCERT science of class 7 which helps students to better understand topics of chapter 13 MOTION AND TIME. 1) Non-Uniform motion:- An object cover a proper distance in different time interval is known as Non- Uniform Motion. 2) Oscillation:- Movement by pendulum from its 'O' exists B point and B point to 'O' axis and again to A point and from A point to 'O' axis is known as Oscillation. 3) Simple Pendulum:- A simple pendulum consist a small metals ball, a thread and a stand. 4)Speed:- Distance covered by a vehicle in time is called speed. 5)Time period:-   Total time taken by an object for complete its task (work) is known as time period. 6)Uniform motion:- When an  object cover proper distance in definite time interval is known as Uniform Motion. 7) Speedometer:- Meter in vehicle which show its speed known as Speedometer. 8)Odometer:- Meter which show total distance

 CHAPTER 11 TRANSPORTATION IN ANIMALS AND PLANTS Here is some important points and answer of chapter 11 Transportation in Animals and Plants NCERT science of class 7 which helps students to better understand topics of chapter 11 Transportation in Animals and Plants.   Keywords 1) Artery:- Blood vessels which carry oxygenated from heart to body cell are called Artery. 2) Blood vessels:-   Tube like network which transport blood to all parts of our body are called  blood vessels. 3) Capillary:- Thin tube like structure  which join artery and veins are called Capillary. 4) Excretion:- The process of removing waste product in cell of living organisms is known as Excretion. 5) Circulatory system:- The System which help in transport substance  to all parts of body in human being is known as Circulatory System. 6) Haemoglobin:- Red pigment present in blood cells help in taking oxygen is known as haemoglobin. 7)Heart break:- Rhytimically contraction and relaxation heart make a heartbeat. 8)Pul

 CHAPTER 10  RESPIRATION IN ORGANISM Here is some important points and answer of chapter 10 RESPIRATION IN ORGANISM NCERT science of class 7 which helps students to better understand topics of chapter 10 RESPIRATION IN ORGANISM. KEYNOTES OF CHAPTER 10: a) Aerobic Respiration:- When glucose break down in energy  in the presence of oxygen is known as Aerobic Respiration. b) Anaerobic Respiration:- When   glucose    break down in energy in the absence of oxygen is known as Anaerobic Respiration. c) Breathing Rate:- Total number of inhalation and exhalation (breathe) in one minute is called Breathing Rate. d) Cellular Respiration:- Break down of glucose  into energy in side of cell is known as Cellular Respiration. e) Exhalation:- Releasing out of CO2 from nostril is known as Exhalation. f) Gills:- Breathing organ of aquatic animals. g) Lungs:- Breathing organ of  some animals who lives on land like human, cow, dog, monkey, etc. h) Inhalation:-  Taken oxygen through the nostril is called

 Chapter 6 Tissue  Here is the answer of chapter 6  Tissue  of NCERT science of class 9.The complete solution of CHAPTER 6 Tissue is given here which is prepared subject expert.  Block Questions Page No- 69 Ques 1. What is tissue? Ans. Tissue is a group of cells that are similar in structure and are organised together to perform specific task. Ques 2. What is the utility of tissue in multicellular organisms? Ans.  In unicellular organisms, a single cell performs all the basic function such as respiration,movement, excretion, digestion,etc. But in multicellular organisms, cells are grouped to form tissues. This tissues are specialized to carry  out a particular function at a place in the body. For example: the muscle cell form muscular tissue which help in movement, nerve cells form the  nervous tissue which helps in transmission of message.  This is known as division of labour that multicellular organisms. It is because of my division of labour that multicellular organisms are able or