Tag: CBSE 7
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…
CBSE 7 | Science – Study – Free
Educational Tools | Full Course Study Tools Audio, Visual & Digital Content Assessment Tools Assign, Assess & Analyse
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…
Symmetry | Study
Pre-Requisires Test & Enrich Congruence of Triangles | Speed Notes Notes For Quick Recap Congruence: The relation of two objects being congruent is called congruence. (Scroll down to continue …) Study Tools Audio, Visual & Digital Content Chapter – 7 Congruence of Triangles SSS Congruence of two triangles: Under a given correspondence, two triangles are…
Visualising Solid Shapes | Study
Pre-Requisires Test & Enrich Visualising SolidShapes | Speed Notes Notes For Quick Recap The circle, thesquare, the rectangle, the quadrilateral and the triangle are examples of plane figures; the cube, the cuboid, the sphere, the cylinder, the cone and the pyramid areexamples of solid shapes. (Scroll down to continue …) Study Tools Audio, Visual &…
Rational Numbers | Study
Pre-Requisires Test & Enrich Rational Numbers | Speed Notes Notes For Quick Recap Rational Number: A number that can be expressed in the form (Scroll down to continue …) Audio, Visual & Digital Content 14. Every positive rational number is greater than zero. 15. Every negative rational number is less than zero. 16. The rational…
Perimeter and Area | Study
Pre-Requisires Test & Enrich Perimeter and Area | Speed Notes Notes For Quick Recap Perimeter is the distance around a closed figure whereasarea is the part of plane occupied by the closedfigure. Area is the measure of the part of plane or regionenclosed by it. (Scroll down to continue …) Study Tools Audio, Visual &…
Exponents and Powers | Study
Pre-Requisires Test & Enrich Exponents and Powers Exponents | Speed Notes Notes For Quick Recap Exponents are used to express large numbers in shorter form to make them easy to read, understand, compare and operate upon. (Scroll down to continue …) Study Tools Audio, Visual & Digital Content Expressing Large Numbers in the Standard Form:…
The Triangle And Its Properties | Study
Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Triangle A closed plane figure bounded by three linesegments. The six elements of a triangle are its three angles and thethree sides. The line segment joining a vertex of a triangle to the mid point of its opposite side is called a medianof the triangle.…
Comparing Quantities | Study
Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap Comparing Quantities: Weare often requiredto compare two quantities, in our dailylife. They may be heights, weights, salaries, marks etc. To compare two quantities, their units must be the same. We are often required to compare two quantities in our daily life. They may be heights,…
Integers | Study
Pre-Requisires Test & Enrich Integers | Speed Notes Notes For Quick Recap Integers are a bigger collection of numbers which is formed by whole numbers and their negatives. You have studied inthe earlier class, about the representation of integers onthe number lineand their addition and subtraction. (Scroll down to continue …) Study Tools Audio, Visual…
Fractions and Decimals | Study
Pre-Requisires Test & Enrich Speed Notes Notes For Quick Recap (Scroll down to continue …) Study Tools Audio, Visual & Digital Content Fractions: 4. A fraction whose numerator is less than the denominator is called a proper fraction. 5. A fraction whose numerator is more than or equal to the denominator is called animproper fraction.…
Data Handling | Study
Pre-Requisires Test & Enrich Data Handling | Speed Notes Notes For Quick Recap The collection, recording and presentation of data help us organiseour experiences and draw inferences from them. Before collecting data we need to know what we would use it for. The data that is collected needs to be organised in a propertable, so…
