NCERT SCIENCE CLASS 6 FULL BOOK SUMMARY

NCERT CLASS VI

CONTENTS of This Post are –

  1. Short & Point-wise Summary
  2. Detailed Video-lecture
  3. Download PDF-NOTES
  4. Practice Test Level A (for Civil service Exam)
  5. Practice Test Level B (for other exams)

Short & Point-wise Summary:

Chapter 1: Food: where does it come from

  • Cooked food always have some kind of ingredients. eg. Idli has Rice, Urad Dal, salt & Water as its ingredients.
  • sources of food materials are plants and animals.
  • Herbivores: eat plants only
  • Carnivores: eat animals only
  • Omnivores: eat both plants and animals

Chapter 2: Components of Food

  • Food ingredients have carbohydrates, Protein, Fat, Vitamins and Minerals as Nutrients.
  • Dietary Fibre present in some food helps to get rid of undigested food.
  • water helps in absorption and excretion.
  • Vitamins and Minerals are required in less amount in the body and they are needed for proper growth and a healthy body.
  • taking excessive amounts of fat in the diet is called Obesity.

Chapter 3: Fibre to Fabric

  • Ginning and Spinning are the two processes of making Yarn from the fibre.
  • Weaving and Knitting are the two processes of making Fabric from Yarn.
  • Cotton, Jute, Flax, Silk and Wool are the Natural sources of Fibre.
  • Polyester, Nylon and Acrylic are the artificial sources of Fibre.

Chapter 4: Shorting Materials into Group

  • Materials can be grouped as per their similar properties.

Chapter 5: Separation of Substances

  • Different Methods of separation are 1. Hand-Picking 2. Threshing 3. Winnowing 4. Sieving 5. Sedimentation 6. Decantation 7. Filtration 8. Evaporation and Condensation.

Chapter 6: Changes around Us

  • Contractions and Expansion are the two properties of a metal.
  • on heating, metal expands and on cooling, it contracts.
  • On heating, the metal rim expands and fits onto the wheel. Coldwater is then poured over the rim which contracts and fits tightly onto the wheel.

Chapter 7: Getting to Know Plants

  • Plants are classified into Herbs, Shrubs, Trees, Creepers and Climbers.
  • The part of a leaf by which it is attached to the Stem is called Petiole. 
  • The broad green part of the leaf is called Lamina. 
  • The lines on the leaf are called Veins. 
  • The thick vein in the middle of the leaf is called Midrib. 
  • The design made by veins in a leaf is called the leaf venation.
  • There are two types of leaf venation – Reticulate Venation and Parallel Venation.
  • In Reticulate Venation, Veins are arranged as a net-like design on both sides of the midrib.
  • In Parallel Venation, veins are arranged parallel to one another.
  • Photosynthesis: Leaves prepared their food in the presence of sunlight and a green coloured chlorophyll in them by the use of water and carbon-di-oxide. This is called Photosynthesis.
  • The Tap root is the main root of a plant.
  • the smaller roots present all around of Tap root is called Lateral Roots.
  • when roots are all similar and no tap root is present called fibrous root.
  • Petals and Sepals are the ordinary parts of a flower.
  • Stamen is the male reproductive organ and Pistil is the female reproductive organ of a flowering plant.
  • A Stamen has two parts: Anther and Filament.
  • A Pistil has three parts: Stigma, Style and Ovary.

Chapter 8: Body Movements

  • Movements in animals are because of Joints present between bones.
  • Types of Joints are –
Ball and Socket Joints present in shoulder and Hip joints movement in all direction
Pivotal Joints Join head to neck movement in all direction
Hinge Joints present in elbow and knee movement in one direction
Fixed Joints Present in skull and Pelvis No movement

Chapter 9: Living Organisms and their Surroundings

  • The surroundings where organisms live is called Habitat.
  • Terrestrial habitats: Forest, Grassland, Desert, Coastal areas, Mountain
  • Aquatic Habitats: Pond, river, ocean, lakes
  • Living things such as plants and animals are the biotic component of Habitat.
  • Non-living things such as rock, soil, air and water are called the abiotic component of Habitat.
  • Adaptation: the presence of specific features or certain habitats which enable a plant or an animal to live in its surroundings is called adaptation.
  • Acclimatisation: There are some changes that can happen in an organism over a short period of time to help them adjust to some changes in its surroundings. such small changes that take place in the body of a single organism over short periods to overcome small problems due to changes in the surroundings are called acclimatisation.

Chapter 10: Motion and Measurement of Distances

  • Motion in one direction is called Rectilinear Motion.
  • Motion in a circle is called Circular Motion.
  • Motion that repeats after an interval of time is called periodic motion.
  • Measurement of a known quantity with which we can measure an unknown quantity is called Unit.

Chapter 11: Light, Shadow & Reflection

  • Luminous Objects are those that give off light.
  • Those materials from which light passes completely, called Transparent Materials. Examples are glass, clear water etc.
  • Those materials from which light partially passes, called Translucent Materials. Examples are Oil-paper, coloured polythene bags etc.
  • Those materials from which light can never pass are called Opaque. examples are wall, cardboard etc.
  • Shadow: the dark area where light from the light source is blocked is called a Shadow.

Chapter 12: Electricity and Circuits

  • The direction of Electricity is from the positive terminal to the negative terminal of a cell.
  • Conductors are the substances from which electricity can pass.
  • Insulators are substances from which electricity can’t pass.

Chapter 13: Fun with Magnet

  • Magnetite is a naturally occurring magnet.
  • A magnet was first discovered at a place Magnesia.
  • Magnetic materials are Iron, Nickels and Cobalt.
  • Hammering, Heating and dropping from a height are the reasons for losing the strength of a magnet.

Chapter 14: Water

  • Water Recycle is the only process of existence of water on the earth.
  • Ground Water is the main source of drinking water available on the earth.

Chapter 15: Air around us

  • Air is composed of water vapour, oxygen, nitrogen, carbon-di-oxide, dust and smoke.
  • Nitrogen and Oxygen make up 99% of the Air.

Chapter 16: Garbage in, Garbage out

  • Garbage is dumped into a low lying open area called a landfill.
  • After the landfill is completely full of garbage, it is converted into a park or a playground and for the next 20 years, there will be no construction on that area.
  • VermiComposting: The method of preparing compost with the help of red worms is called vermicomposting.
  • Red Worms have a structure called Gizzard which helps them in grinding their food.
  • Red Worm eats food equal to its own weight, in a day.
  • Papier Mache: It is a paste of clay, paper and rice husk.

Detailed Video-Lecture 

on 
NCERT Science and Tech
Class VI
(Complete Book)

Bilingual (Hindi & English)

Download PDF Notes

Bilingual (Hindi & English)

Practice Test Level A

(As per Civil Service Exam)

Practice Test Level B

(As per CDS, NDA, SSC & Other Exams)


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