Description: En esta lectura presentaremos ejemplos de estructura de cursos online en la perspectiva que selecciones la estructura que aplicarás a tu propio curso.Para facilitar tu trabajo de construcción, te propondremos diferentes plantillas, como documentos de referencia al final de este módulo.
Description: With all chapters:-
Microorganisms - Friend and foe
Synthetic Fibers and Plastics
Materials: Metals and Non-Metals
Coal and Petroleum
Combustion and Flame
Conservation of Plants and Animals
Cell - Structure and Functions
Reproduction in Animals
Reaching the Age of Adolescence
Force and Pressure
Chemical Effects of Electric Current
Some Natural Phenomena
Stars and the Solar System
Pollution of Air and Water
Description: This Digital content covers the following chapters as per NCERT book :
1 Rational Number
2 Linear equations in One Variable
3 Understanding Quadrilaterals
4 Practical Geometry
5 Data Handling
6 Square and Square Roots
7 Cube and Cube Roots
8 Comparing Quantities
9 Algebraic Expression and Identities
10 Visualising Solid Shapes
12 Exponents and Powers
13 Direct and Inverse Proportions
15 Introduction to Graphs
16 Playing with Numbers
Description: SAFETY MATCHSTICK
Safety matches ignite due to the extreme reactivity of phosphorus with the potassium chlorate in the match head. When the match is struck the phosphorus and chlorate mix in a small amount forming something akin to the explosive Armstrong's mixture which ignites due to the friction."
Description: Types of irrigation methods
Moat or pulley-system: It is a manual irrigation method. By this method water is directly taken out of wells with the help of pulley and is used to irrigate fields
Chain pump: A chain pump consists of two large wheels, connected by an endless chain. The bottom wheel is half immersed in the water source. As the wheel is turned, the connected buckets dip into the pool and pick up water. The chain then lifts them to the upper wheel, where the water from the buckets is transferred to the pool. The chain then carries the empty buckets back down to be refilled and the process continues
Dhekli: In this system a rope and bucket connected to pole to obtain water from well. They connect rope and bucket on one end of a heavy stick and a heavy counter weight at the other end
Rahat: In this method water is drawn out of wells by animals. Animals like cow, buffalo, oxen etc. are connected to wheel. Animals move and rotate the wheel lead to draw the water from the well.
Description: Matters in Our surroundings:-
Composition of matter
matter in made up of practicle
properties of matter
states of matters
Rigid & fluid
Interconversation of the state of matter
Effect of change of temperature & pressure
Latent heat of vapourization and fusion
Description: Class IX NCERT Science The Fundamental Unit of Life
In this video you can study about the Diffusion and Osmosi
It is a part of our complete video on transport across plasma membrane named Structure of a cell. Explains the structure and functions of cell organelles, structure and function of plasma membrane. Structure and function of nucleus. It also explains function of cytoplasm. Examples of cells without nucleus. Definition of cell organelles, structure, functions and types of Endoplasmic reticulum.
Description: A tropism is the innate ability of an organism to turn or move in response to a stimulus. As opposed to a learned ability, innate reactions are genetically programmed. Organisms with a tropism will naturally turn toward a stimulus. A stimulus can be any signal from the environment, and individual tropisms are often named after the stimulus that causes the movement. In a positive tropism the animal will move toward the stimulus. In a negative tropism, the animal will move away from the tropism. Certain stimuli become genetically engrained because they are always beneficial or always detrimental to an organism. A movements caused by a tropism is called a taxis.
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"Thigmotropism:-There are a few different ways that different climbing plants use to cling to surfaces and to change their own shape. The two examples of thigmotropism that will look at are the presence of tendrils, and the clinging of plants to surfaces using their roots.
chemotropism:-These simple organisms will simply move towards or away from stimuli in the direction that has been most evolutionarily rewarding to their ancestors. In higher organisms, certain chemicals still attract animals, though they may not always move towards it. In other words, while they have the tropism, they do not always exhibit taxis. For instance, sharks have a positive chemotropism for blood, or they tend to move towards blood. However, a shark will often inspect a meal or test it before devouring the prey, showing that other mechanisms can override a tropism.
hydrotropism:-The survival of terrestrial plants depends upon the capacity of roots to obtain water and nutrients from the soil. Directed growth of roots in relation to a gradient in moisture is called hydrotropism and begins in the root cap with the sensing of the moisture gradient. Even though the lack of sufficient water is the single-most important factor affecting world agriculture, there are surprisingly few studies on hydrotropism. Recent genetic analysis of hydrotropism in Arabidopsis has provided new insights about the mechanisms that the root cap uses to perceive and respond simultaneously to moisture and gravity signals
Description: For complete scenes, check out my videos here: http://bit.ly/2J5VtH5
A big thank-you to the following resources. Without such resources, these videos would not have been the same: The New Cambridge Shakespeare, No Fear Shakespeare, the Oxford Shakespeare, and the artists whose work appears in my slides. Please get in touch if you'd like to know the source of any illustration, clip-art, photograph, or animation.
Description: In this Episode, we cover top 10 open-ended questions you could ask in a conversation to wipe out that awkward silence and never run out of things to say in a conversation.
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