Generation of electricity Some sources can generate electricity by chemical reactions. Examples are Dry cells, simple cells, and car batteries. Let’s make a simple cell. You will need A small beaker, copper, and zinc sheets, a torch bulb, a center-zero galvanometer, dilute sulphuric acid, and pieces of connection wire. Method Thoroughly clean the copper and […]
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What is electrolysis? The chemical change resulted by passing an electric current through an electrolyte is known as electrolysis. During this process, the electrolyte (solution) is converted into simpler components. Applications of electrolysis Extraction of certain metals (e.g. sodium, aluminum) Industrial manufacturing of sodium hydroxide (caustic soda) Electroplating Electrolysis is commonly used in various industries. […]
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Double circulation in the Human heart What is blood circulation? One of the main functions of a circulatory system in animals is transporting oxygen throughout the body. During blood circulation, blood is pumped to a gas exchange organ to obtain oxygen, then pumped to other parts of the body where it unloads the oxygen. Before […]
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WHAT IS BLOOD CIRCULATION? Blood circulation is a transport system in a closed circuit formed by the heart and blood vessels. It gathers materials from some locations and, unloads them in others, as it travels across the body. Materials transported through the blood in mammals are Oxygen Carbon dioxide Nutrients Urea Hormones Antibodies Blood also […]
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Flowering plants or angiosperms Flowering plants or angiosperms are classified into two groups: They are Monocotyledonous or monocots Dicotyledonous or in short dicots. We must analyze the many structural characteristics of angiosperms, such as roots, stems, leaves, and flowers, in order to distinguish between monocots and dicots. However, the differences between monocots and dicots start […]
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What is electromagnetic induction? Generation of electricity in a conductor when a magnetic field is cutting with the conductor is known as electromagnetic induction. Some sources can generate electricity by rotating or else by moving them. e.g.: – bicycle dynamo, electric generators Let’s identify how electricity is generated in a dynamo. You will need – A […]
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What is an electric current? The flow of electrical charges through a closed circuit is known as an electric current Let us make a circuit Let us connect an external wire of an electric source to an electric appliance (bulb). Electric current flows from the source through the wire and the appliance. Observations – The […]
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Classification of crocodile and the alligator Alligators and crocodiles are reptiles that belong to two different families. Crocodilia is the class of reptilia that is considered large predatory and semi-aquatic creatures. Mostly they are called crocodilians. there are three families in order crocodilia. Family Crocodylidae, family Alligatoridae, and family Gavialidae. True crocodiles are belonging to […]
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What is Cellular respiration? It is the process of oxidating simple foods to produce energy for biological activities within living cells called Cellular respiration. Organisms gain food from the digestive system and oxygen from the respiratory system by inspiration. These two components react with each other and give energy as the main product and carbon […]
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Common facts about Elephants The family Elephantidae which means the elephant is the largest ground animal in the world. Elephants mostly live in the woods and grasslands. With a large body, they have a distinctive physical appearance like having a trunk, large ears, and tusks. They feed on plant leaves, fruits, woody parts of trees, […]
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