When it comes to competitive exam, general science or general awareness play very important role. Almost in every government job exam general science is indispensable. Here we are providing SCIENCE NCERT NOTES FOR SSC AND UPSC. Usually aspirants gets confused from where to study general science as there is a large number of books and notes in the market.
But aspirants do one mistake, they pick any random book and starts mugging up the facts. This is the worst way to prepare general science. Instead you should study general science from the NCERT books.
Advantage of reading NCERT books
- Easy language– Since NCERT books are written for the school students, it has very easy language. So, it becomes easy to understand.
- Concept– Concepts are very well described in NCERT books. Focus on concepts so that if examiner asks question in twisted manner, you could answer. Remember, now conceptual questions are being asked in competitive exams.
- Systematic way: In NCERT books chapter are linked in systematic way which makes it easier to understand the concepts.
- Authentic source : you can completely rely on NCERT books since it is written by highly qualified academicians.
Now, you have understood the importance of reading NCERT books for competitive exam preparation we are going to discuss NCERT class-6 science notes. These notes is in One liner format. Just go through them, i have covered full class 6 NCERT science book.
Chapter 1 – Food: Where Does It Come From?
- Herbivore : Animals which eat plant or plant based food.
- Carnivores: A carnivore is animal which get foods from other animal. eg Lion.
- Omnivores : Animal which eat both plant and animal based food.
- Sweet juices of the flower is called Nectar.
Chapter 2 – Components of Food.
- Major nutrients needed by our body are Carbohydrate, Proteins, Fats, Vitamins and Minerals.
- Major Carbohydrates are- Starch & sugar.
- Test to detect starch(carbohydrate)– Iodine Test. If starch is present then food item turns blue black.
- Test to detect Protein– Copper sulphate and caustic soda. If it turns to violet, protein is present.
- Test for fat – Wrap the food in paper. If you find oily patch on paper, then fat is present there.
- Dietary fibers are also known as Roughage. Roughage does’t provide any nutrients, but help to get rid of undigested food.
- Vitamin – C : gets easily destroyed by heat during cooking.
- Carbohydrate and fats mainly provide energy to our body.
- Proteins and minerals are needed for the growth and maintenance for our body.
|A||Loss of vision||poor vision|
|D||Rickets||Bones become soft|
|Calcium||Bone & tooth decay||bone and tooth decay|
|Iodine||Goiter||glands in the neck becomes swollen|
Chapter 3 – Fibre to Fabric.
- Fabrics are made of yarns which in turn are made of fibres.
- Natural fibres: cotton, wool, silk, jute.
- Synthetic Fibres: Nylon, polyester.
- Cotton and Jute are obtained from plant.
- The process of making yarn from fibre is known as spinning.
- Fabrics from yarn is made of weaving and knitting.
- Animal fibre- silk, wool
- Plant fibre- Jute and cotton.
- Jute fibre is obtained from stem of the jute plant.
Chapter 4 & 5 Separation of Substances.
- Husk is separated from Heavier seeds of grain by winnowing.
- Difference in the size of particles in mixture is utilized to separate them by the process of sieving and filtration.
- In a mixture of sand and water, the heavier sand particles settle down at the bottom and the water can be separated by decantation.
- Filtration can be used to separate components of a mixture of an insoluble solid and a liquid.
- A saturated solution is one in which no more substance can be dissolved.
- More of a substance can be dissolved in a solution by heating it.
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Chapter 6, 7 and 8 plants and body movements
- Plants with weak stems that can-not stand upright and spread on the ground are called creepers, while those that take support on neighboring structure are called Climbers.
- A leaf usually has a Petiole and lamina.
- The pattern of Veins on leaf is called Venation.
- Leaves gives out water vapors through the process of Transpiration.
- Green leaves make their food by the process of Photosynthesis using CO2 and water in the presence of sunlight.
- The stem conduct water from roots to leaves and food from leaves to other parts of the plant.
- Parts of the flowers are sepals, petals, stamen and pistil.
- Earthworms move by alternate extension and contraction of the body using muscles.
- Snails move with the help of muscular foot.
Chapter 9 and 10- Living organism and their surroundings.
- The surroundings where plants and animals live, is called Habitat.
- The presence of specific features and habits, which enable a plant or animal to live in particular habitat is called Adaptation.
- Plant, animal, micro-organism together constitute Biotic components.
- Rock, soil, air, water, light are called Abiotic components of surroundings.
Chapter – 11 Light, shadows, reflection
- Object like sun that gives out or emit light of their own are called Luminous objects.
- Light travels in a straight line.
Chapter 13 and 14 Fun with magnets and water
- Magnetite is a natural magnet.
- A freely suspended magnet always align in North-South direction.
- Water vapors get added to air by Evaporation and Transpiration.
- The water vapor in the air condenses to form tiny droplet of water which appears as cloud.Many tiny water droplet come together and fall down as Rain and Snow.
- The circulation of water between Ocean and land is called water cycle.
- Water day is celebrated on 22 March of every year.
Chapter 15 and 16 Air, Garbage in and garbage out.
- Air in motion is called Wind.
- The envelope of air that surround the Earth is known as Atmosphere.
- Aquatic animal uses dissolved O2 in water to respirate.
- The method of making compost from Kitchen garbage using red-worm is called Vermicomposting.
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