CBSE Class 10 Science Notes Chapter 15 Our Environment Biodegradable and Non-biodegradable Wastes, Ecosystem, Components of Ecosystem. The environment includes our physical surroundings like air (or atmosphere), water bodies, soil (land and all the organisms such as plants, animals, human beings and micro-organisms like bacteria and fungi (called decomposers). The waste materials produced by the [...]
CBSE Class 10 Science Notes Chapter 11 Human Eye and Colourful World Human Eye: working of human eye, Persistence of vision, Power of accommodation of human eye, Defects of vision. The Human Eye: It is a natural optical instrument which is used to see the objects by human beings. It is like a camera which [...]
CBSE Class 10 Science Notes Chapter 10 Light Reflection and Refraction REFLECTION Reflection of Light: The phenomenon of bouncing back of light into the same medium by the smooth surface is called reflection. Incident light: Light which falls on the surface is called incident light. Reflected light: Light which goes back after reflection is called [...]
CBSE Class 10 Science Notes Chapter 9 Heredity and Evolution Heredity and Inherited Traits: Mendel’s Experiment; Sex determination. Heredity refers to the transmission of characters from parents to offsprings. An inherited trait is a particular genetically determined feature that distinguishes a person from the others for example; attached or free ear lobes in human beings. [...]
CBSE Class 10 Science Notes Chapter 5 Periodic Classification of Elements “The periodic table is a tabular method of displaying the elements in such a way, that the elements having similar properties occur in the same vertical column or group”. Earlier attempts of the classification of elements: Dobereiner’s Triads, Newland’s law of octaves. Dobereiner’s Triads: [...]
Carbon and its Compounds Notes CBSE Class 10 Science Chapter 4 Bonding in Carbon: The Covalent bond, Electron dot structure, Physical properties of organic compounds, Allotropes of Carbon. Covalent Bond: The atomic number of carbon is 6. Its electronic configuration is 2, 4. It requires, 4 electrons to achieve the inert gas electronic configuration. But [...]