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Motion and Time | Study
Pre-Requisires Test & Enrich Motion and Time | Speed Notes Notes For Quick Recap Motion: The action or process of moving or being moved. The distance moved by an object in a unit time is called its speed. Speed of objects help us to decide which one is moving faster than the other. The speed…
Electric Current and its Effects | Study
Pre-Requisires Test & Enrich Electric Current | Speed Notes Notes For Quick Recap Flow of electrons through a conductor. It is convenient to represent electric components by symbols. Using these, an electric circuit can be represented by a circuit diagram. When an electric current flows through a wire, the wire gets heated. It is the…
Light | Study
Pre-Requisires Test & Enrich Light | Speed Notes Notes For Quick Recap Light: It is the natural agent that stimulates sight and makes things visible. Light travels along straight line. Any polished or a shining surface acts as a mirror. An image which can be obtained on a screen is called a real image. (Scroll…
Forests: Our Lifeline | Study
Pre-Requisires Test & Enrich Forests: Our Lifeline | Speed Notes Notes For Quick Recap Forest: Large area of land thickly covered with trees, bushes, etc. We get various products from the forests around us. Forest is a system comprising various plants, animals and micro-organisms. In a forest, trees from the uppermost layer, followed by shrubs,…
Wastewater Story | Study
Pre-Requisires Test & Enrich Wastewater Story | Speed Notes Notes For Quick Recap Wastewater: Black-brown water which is rich in lather , mixed with oil that goes down the drains from skins, showers, toilets, laundries is called wastewater. sewage: Wastewater is generated in homes, industries, agricultural fields and in other human activities. This is called…
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Nutrition in Plants | Study
Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Nutrition: It is the mode of taking food by an organism and its utilization by the body. Nutrients: The components of food that provide nourishment to the body. All organisms take food and utilise it to get energy for the growth and maintenance of their…
Nutrition in Animals | Study
Pre-Requisires Test & Enrich Nutrition in Animals | Speed Notes Notes For Quick Recap Classification based on Eating Habits: Herbivorous: Animals that eat plants or plant products. Example: Cow, sheep, goat, deer, elephant, kangaroo, giraffe, etc. Carnivorous: Animals that eat only flesh of other animals. They never eat plants. Examples: Tiger, lizard, lion, etc. Omnivorous:…
Heat | Study
Pre-Requisires Test & Enrich Heat | Speed Notes Notes For Quick Recap Heat: It is a form of energy, which makes any object hot or cold. The materials which allow heat to pass through them easily are conductors of heat. The materials which do not allow heat to pass through them easily are called insulators.…
Acids, Bases and Salts | Study
Pre-Requisires Test & Enrich Acids, Bases and Salts | Speed Notes Notes For Quick Recap There are three types of Substances: Acids, Bases and Salts Acids: Acids are sour in taste. They are corrosive in nature. A concentrated acid cuts through clothes and eats away the wool. If it falls on the skin, it can…
Physical and Chemical Changes | Study
Pre-Requisires Test & Enrich Physical And Chemical Changes | Speed Notes Notes For Quick Recap Changes can be of two types, physical and chemical. Physical changes are changes in the physical properties of substances. Due to physical chages new substances are not formed. Physical changes may be reversible. Examples: crushing a can, glowing of an…
Respiration in Organisms | Study
Pre-Requisires Test & Enrich Respiration in Organisms | Speed Notes Notes For Quick Recap Respiration is essential for survival of living organisms. It releases energy from the food. The oxygen we inhale is used to breakdown glucose into carbon dioxide and water. Energy is released in this process. The breakdown of glucose occurs in the…
Transportation in Animals and Plants | Study
Pre-Requisires Test & Enrich Transportation in Animals and Plants | Speed Notes Notes For Quick Recap Transportation in animals: In most of the animals the blood that circulates in the body distributes food and oxygen to different cells of the body. It also carries waste products from different parts of the body for excretion. Circulatory…
Reproduction in Plants | Study
Pre-Requisires Test & Enrich Reproduction in Plants | Speed Notes Notes For Quick Recap All organisms multiply or reproduce offspring of their own kind. In plants there are two modes of reproduction, namely (a) Asexual reproduction and (b) Sexual reproduction. There are several methods of asexual reproduction such as fragmentation, budding, spore formation and vegetative…
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