Grade 6 · Science

Start diagram work, which is the actual gap — the science itself is already known.

1. 2 minWhy diagrams
   CBSE science papers carry marks for labelled diagrams. US schools rarely test this, so the format is the new part, not the content.
2. 4 minLabel
   On a printed plant diagram: root, stem, leaf, flower. Neat lines, labels written horizontally — that is the expected convention.
3. 2 minRedraw
   Freehand from memory, labelled again.

Pair every diagram with definition-style answers, the other half of the format gap.

1. 2 minFunctions
   Roots anchor and absorb water. Stem supports and transports. Leaves make food. Flowers make seeds.
2. 4 minWrite them
   One sentence per part, in their own words, on paper. CBSE wants a definition, not a paragraph.
3. 2 minOne-word answers
   You ask 'which part makes food?' They answer in one word. That is a real question format.

A harder diagram with unfamiliar vocabulary.

1. 2 minThe four parts
   Petal, sepal, stamen, pistil. The last two are the ones nobody guesses.
2. 4 minLabel
   On a flower diagram. Then say which is male, which is female — stamen and pistil respectively.
3. 2 minRedraw
   Freehand, labelled.

The question style the requirements doc flags: classification, not explanation.

1. 2 minWhy sorting
   CBSE Class 6 asks constantly: group these, sort these, which does not belong. It is a distinct skill from explaining.
2. 4 minPractice
   Sort fifteen materials into transparent / translucent / opaque. Then sort ten foods into plant source / animal source.
3. 2 minOdd one out
   Three rounds of 'which does not belong, and why'. The why carries the mark.

Test in the CBSE format: a blank diagram plus definitions.

1. 2 minBlank diagram
   Unlabelled plant and flower. Label both from memory.
2. 4 minDefinitions
   Three one-word answers and two one-sentence definitions, written.
3. 2 minMark together
   Mark it the way a CBSE teacher would — neatness and precision count, not just correctness.

Introduce the five food components with concrete examples and one-sentence definitions — the format CBSE expects for short-answer questions.

1. 2 minReview Week 1 test
   Recall: labelled diagrams and one-sentence definitions were tested. Today’s format is similar — short, precise answers about food components.
2. 4 minList the five
   Carbohydrates (e.g., rice, wheat), Proteins (e.g., dal, eggs), Fats (e.g., ghee, butter), Vitamins (e.g., mango, orange), Minerals (e.g., milk for calcium). One-sentence definitions only: Carbohydrates give energy. Proteins build the body. Fats store energy and keep us warm. Vitamins keep us healthy. Minerals help body functions.
3. 2 minMatch and write
   Given five food items (rice, egg, ghee, mango, milk), write one sentence matching each to its component and function. No extra words.

Define balanced diet using the five components taught yesterday, not general knowledge.

1. 2 minReview components of food
   Carbohydrates, proteins, fats, vitamins and minerals — name all five in one sentence.
2. 4 minDefine balanced diet
   A balanced diet contains all five components in the right amounts to keep the body healthy.
3. 2 minApply the definition
   Circle which of these is balanced: (a) only rice, (b) only eggs, (c) rice, dal, vegetables, milk — and say why using the five components.

Link each deficiency disease to its missing nutrient — the only new skill needed for CBSE Class 6 Science.

1. 2 minReview balanced diet
   A balanced diet provides all nutrients: carbohydrates, proteins, fats, vitamins and minerals. Missing any one can cause disease.
2. 4 minDeficiency diseases
   Rickets (vitamin D), Scurvy (vitamin C), Anaemia (iron), Night blindness (vitamin A). Match each disease to its nutrient — write the nutrient name only.
3. 2 minWrite and match
   On paper: write each disease, then below it the missing nutrient — no extra words.

Introduce iodine and biuret tests — the only two food tests CBSE requires for Class 6.

1. 2 minReview deficiency diseases
   Rickets is caused by lack of vitamin D. Scurvy is caused by lack of vitamin C. Anaemia is caused by lack of iron, and night blindness by lack of vitamin A.
2. 3 minStarch test
   Use iodine solution — turns blue-black if starch is present. No change (brown) if no starch.
3. 3 minProtein test
   Use biuret solution — turns violet if protein is present. No change (blue) if no protein.

Consolidate week’s content and format answers exactly as CBSE expects — no new material.

1. 2 minReview day 9
   Iodine solution turns blue-black with starch; copper sulphate and caustic soda turn violet with protein.
2. 4 minConsolidation
   Write one-sentence answers: (1) Name two deficiency diseases and the missing nutrient for each. (2) What test turns blue-black? (3) What two reagents are used for protein test?
3. 2 minTimed test
   Three questions, 90 seconds each — write answers in CBSE style: short, one-sentence, no extra words.

Understand the purpose of grouping materials and sort common items into categories.

1. 2 minReview
   Recall day 10: the food week, answered in exam format — two deficiency diseases with the nutrient each one lacks, and the reagents for the starch and protein tests. Sorting is the same skill, applied to materials instead of food.
2. 2 minWhy group
   We group things to find them easily, study them better, and understand patterns. In CBSE tests, you will be asked to group items — not explain why.
3. 2 minSort materials
   Group twelve everyday items: wood, iron, glass, paper, plastic, stone, cotton, rubber, chalk, copper wire, leaf, clay. Use criteria: material type, hardness, transparency.
4. 2 minGrouping practice
   Group ten items into two or three categories. The key is to name your groups clearly: 'metal objects', 'non-metal objects'.

Classify materials as transparent, translucent or opaque based on how light passes through them.

1. 2 minReview
   Recall components of food and deficiency diseases. Name three nutrients and their associated deficiencies.
2. 3 minLight and materials
   Transparent: light passes through clearly (glass). Translucent: light passes but image is blurred (grease paper). Opaque: no light passes (wood). Demonstrate with everyday objects.
3. 3 minSort materials
   You name fifteen common objects: glass, wax paper, metal spoon, water, cardboard, plastic sheet, etc. They classify each as transparent, translucent or opaque.

Bridge day 12’s opaque/translucent concepts to solubility and density, using only previously introduced material.

1. 2 minReview day 12
   Transparent lets all light through, translucent lets some light through, opaque lets no light through. Identify examples: glass (transparent), butter paper (translucent), wood (opaque).
2. 3 minSoluble vs insoluble
   Sugar disappears in water (soluble). Sand stays visible and settles (insoluble). Salt dissolves completely; chalk powder does not.
3. 3 minFloating and sinking
   Wood floats in water; iron nail sinks. A substance floats if it is less dense than water, sinks if denser — but only state observable outcome: 'floats' or 'sinks'.

Sort materials by hardness and lustre, and write the answer in the grouped form CBSE marks.

1. 2 minReview
   Recall day 13: soluble and insoluble, and why density rather than weight decides floating. Today adds two more sorting criteria.
2. 2 minHardness
   Hard materials resist being scratched — iron, stone, glass. Soft materials give way — chalk, sponge, cotton. Scratch two against each other: whichever marks the other is harder.
3. 2 minLustre and appearance
   Lustrous materials shine when freshly cut or polished — iron, copper, gold. Non-lustrous ones do not — wood, chalk, cloth. Appearance covers colour, texture and surface.
4. 2 minThe answer format
   These are asked as classification: 'Group the following on the basis of lustre.' Name the criterion on the first line, then two named groups with items listed under each. A paragraph loses marks even when the sorting is right.

Assess mastery of week 3 material (grouping, transparency, solubility, floating, and properties) and week 1 plant/flower classification without introducing new content.

1. 2 minReview day 13
   Soluble substances dissolve completely in water (e.g., sugar, salt). Insoluble substances do not dissolve (e.g., sand, oil). Floating depends on density relative to water; sinking occurs when an object is denser than water.
2. 4 minClassification test
   Write answers on paper: (1) Name two soluble substances. (2) Name one opaque material. (3) Will a wooden block float or sink? (4) Why does oil form a layer on water? (5) Group by lustre: copper, wood, gold, chalk.
3. 2 minPlant and flower recall
   Write one-sentence definitions for: root, stem, leaf, flower. Then sort these items into plant parts and non-parts: petal, seed, fruit, stem.

Introduce luminous vs non-luminous distinction — foundational for later topics like reflection and shadows.

1. 2 minReview classification test
   Recall how sorting by properties (hard/soft, shiny/dull) and grouping materials helped explain why things behave as they do — today we sort by light source.
2. 3 minDefine luminous and non-luminous
   Luminous objects give out their own light: Sun, candle flame, firefly. Non-luminous objects do not give out their own light: Moon, book, table.
3. 3 minSort examples
   On paper: classify Sun, Moon, bulb (switched on), bulb (switched off), stars, chair as luminous or non-luminous. One word per item.

Introduce shadow formation using only light sources and opaque objects — no new terminology beyond day 16.

1. 2 minReview light sources
   Recall day 16: luminous objects give out their own light (e.g. Sun, electric bulb); non-luminous objects do not (e.g. book, chair).
2. 4 minShadow formation
   Shadows form when light from a luminous source is blocked by an opaque object. The shadow appears on the side opposite the light source.
3. 2 minDraw and label
   Sketch a simple scene: Sun → opaque book → shadow on wall. Label light source, object, and shadow.

Introduce reflection and plane mirrors — the first time they encounter this topic.

1. 2 minReview shadows
   Shadows form when light is blocked by an opaque object — no light reaches behind it.
2. 4 minReflection
   When light hits a smooth surface like a mirror, it bounces back — that is reflection. The ray arriving is the incident ray, the ray leaving is the reflected ray, and both make equal angles with the normal — the line drawn perpendicular to the mirror where the ray strikes. A plane mirror gives a clear image.
3. 2 minImage in a mirror
   The image formed by a plane mirror is upright, same size as the object, and appears behind the mirror at the same distance.

Introduce ray diagram conventions: straight lines with arrows, labels for incident/reflected rays and normal, and correct angles — all drawn on the diagram itself.

1. 2 minReview reflection
   Recall day 18: light reflects off a smooth surface like a mirror; angle of incidence equals angle of reflection.
2. 3 minDraw the setup
   On paper: draw a straight mirror line (label 'Mirror'), draw a normal line perpendicular to it at the point of incidence, label 'Normal'. Draw an incident ray with arrowhead pointing toward the mirror, and a reflected ray with arrowhead pointing away. Label 'Incident Ray' and 'Reflected Ray'.
3. 3 minLabel on the drawing
   Write all labels directly on or beside the lines: 'Mirror', 'Normal', 'Incident Ray', 'Reflected Ray'. No labels on separate paper — everything must be on the diagram.

Consolidate and assess all topics taught this month using CBSE-style diagram and definition questions.

1. 2 minReview ray diagrams
   Recall day 19: ray diagrams must show incident ray, reflected ray and normal line — all marked on the drawing itself.
2. 4 minWritten test
   Three questions: (1) Label a plant diagram — root, stem, leaf; (2) Match materials to groups — wood, glass, iron — and write one reason for each grouping; (3) Draw a ray diagram for reflection: incident ray, reflected ray and normal line all labelled on the drawing.
3. 2 minSelf-check
   Child checks answers against answer key: plant labels (3 parts), material groupings (3 correct with one-sentence reason each), ray diagram (3 lines marked).