Animals are classified based on various features:
Based on food: Herbivore (only plants - cow, goat), Carnivore (only meat - lion, eagle), Omnivore (both - bear, humans, crow).
Based on backbone: Vertebrates (have backbone - fish, frog, snake, bird, mammal), Invertebrates (no backbone - insect, worm, jellyfish, spider).
Based on birth: Oviparous (lay eggs - bird, fish, frog, snake), Viviparous (give birth to young - dog, cat, whale, human).

Draw a classification chart (branching tree) showing: Animals - Vertebrates/Invertebrates - further subdivisions. Make a 3-column table: Herbivore | Carnivore | Omnivore with 5 examples each. Another table: Oviparous | Viviparous with examples.

Sort game: Papa reads 20 animal names. Nandika classifies each as: Herbivore/Carnivore/Omnivore AND Vertebrate/Invertebrate AND Oviparous/Viviparous. Animal: Crow - Omnivore, Vertebrate, Oviparous! Time yourself - can she do 20 in 3 minutes?

Habitat = the natural home of an animal. Major habitats: Forest, Desert, Polar, Ocean, Freshwater, Grassland, Mountains.
Adaptation = special features that help an animal survive in its habitat. Examples: Camel (desert) - hump stores fat (not water!), wide feet, long eyelashes, can close nostrils. Polar bear - thick white fur, layer of fat. Fish - streamlined body, fins, gills. Duck - webbed feet, waterproof feathers.

Make a table: Habitat | Animal | 3 Adaptations. Fill in for: Desert (Camel), Polar (Polar Bear), Ocean (Fish/Dolphin), Forest (Monkey), Grassland (Giraffe), Mountain (Snow Leopard). Draw the camel with labels pointing to each adaptation. This is a very common exam question!

Design challenge: Imagine an animal for a new habitat - say, a planet with no sunlight and extreme cold. What adaptations would it need? Draw and describe your invented animal! This builds scientific thinking. There are no wrong answers!

Food Chain: shows who eats whom in nature. Always starts with a Producer (green plant), followed by Consumers. Primary consumer = herbivore. Secondary consumer = carnivore that eats herbivore. Tertiary consumer = top predator. Decomposers (fungi, bacteria) break down dead organisms and return nutrients to soil. Food Web: many food chains interconnected in a network.

Draw a food chain: Grass - Grasshopper - Frog - Snake - Eagle. Label each organism as Producer / Primary / Secondary / Tertiary Consumer. Draw arrows (- means "is eaten by" or "energy flows to"). Draw a simple food web with at least 3 overlapping chains. Box the decomposers separately.

Role play! Family plays a food chain: Papa = sun (energy), Nandika = grass (producer), sibling/Mama = grasshopper, Papa = frog... Papa holds a string. When any link is "removed" (a species disappears), how does it affect the rest? This demonstrates ecosystem balance!

Domestic animals: tamed and kept by humans for various purposes. Cow (milk, dung for fuel), Hen (eggs, meat), Sheep (wool, meat), Horse (transport), Dog (guard, companionship), Silkworm (silk), Honey bee (honey + pollination).
Wild animals: live freely in nature. Not tamed. Tiger, lion, wolf, deer, elephant.
Endangered animals: Tiger, Asiatic Lion, One-horned Rhinoceros, Snow Leopard, Great Indian Bustard.

Make a table: Domestic Animal | Product/Use | Interesting fact. Fill in 8 animals. Draw a map of India with markers showing where major wildlife sanctuaries are (Jim Corbett, Kaziranga, Gir, Sundarbans). Write one endangered animal for each sanctuary.

Research activity: Find out about Project Tiger in India. When was it started? How many tigers were left then? How many are there now? Write 5 sentences about how India is protecting its tigers. This connects science to current affairs!

Draw "Animals" mind map: Classification (food/backbone/birth) - Habitats & Adaptations - Food Chain & Web - Domestic vs Wild - Endangered animals. Add key examples and facts to each branch.

Redraw from memory: (1) Classification chart, (2) Food chain with labels, (3) Camel adaptation diagram. Compare with original notes - what was missed? Redraw those parts again.

10 mixed questions: animal classification, adaptations, food chain, endangered animals. Score. Any score below 7 = dedicated revision of that sub-topic before Week 3.

Sources of water: Natural - rivers, lakes, ponds, springs, groundwater, rain, ocean. Man-made - dams, wells, reservoirs, canals.
Properties of water: colourless, odourless, tasteless, liquid at room temperature, universal solvent (dissolves many things), boils at 100°C, freezes at 0°C, takes shape of container, exists in 3 states (solid/liquid/gas).
Types by use: Potable (drinking) water must be clean and safe.

Draw India's map and mark major rivers (Ganga, Yamuna, Brahmaputra, Godavari, Krishna, Kaveri). Draw 3 states of water: ice (solid) - water (liquid) - steam (gas) with temperature labels. Write all properties of water as bullet points.

Simple experiment: Put a glass of water in the freezer for 2 hours - observe ice formation. Boil water and observe steam. Feel the container after boiling - why is it hot? What has the water become? Write observations. Connects to water cycle!

The water cycle is the continuous movement of water on, above and below Earth. Steps: 1. Evaporation: Sun heats water in oceans/lakes - becomes water vapour - rises. 2. Condensation: water vapour cools in upper atmosphere - forms clouds. 3. Precipitation: water falls as rain, snow, hail. 4. Collection: water collects in oceans, rivers, lakes, groundwater. Then cycle repeats! Also: Transpiration from plants adds water vapour.

Draw the COMPLETE water cycle diagram with: ocean/lake, sun rays, evaporation arrows going up, clouds forming, rain falling, rivers flowing back to ocean, mountains with snow, groundwater layer below. Label all 4 processes: evaporation, condensation, precipitation, collection. Use blue for water, yellow for sun, grey for clouds. This is the most important EVS diagram!

Mini water cycle experiment: Put warm water in a bowl. Cover tightly with plastic wrap. Place ice cubes on top of the plastic wrap. Watch water droplets form underneath the plastic and drip down. You have created EVAPORATION (warm water), CONDENSATION (cold plastic + droplets) and PRECIPITATION (dripping)!

Water from rivers and ponds is not safe to drink directly. It may contain dirt, germs, dissolved salts.
Methods of purification: 1. Sedimentation: allow mud to settle at bottom. 2. Filtration: pass through filter (removes solid particles). 3. Chlorination: add chlorine to kill germs. 4. Boiling: most effective - kills all germs. 5. UV purification: UV light kills bacteria. Municipal (city) water treatment follows all these steps.

Draw a simple water treatment plant diagram showing: river - settling tank (sedimentation) - filter beds - chlorination tank - storage tank - homes. Label each step and write its purpose. Draw a simple home filter (candle filter or UV purifier) and explain how it works.

Simple filter experiment: Take a funnel, put cotton at the bottom, then sand, then small pebbles, then gravel. Pour muddy water through it. Observe how the water coming out is cleaner. Each layer filters out different sized particles. This is exactly how a real water treatment plant works!

Water conservation = using water wisely to prevent wastage. Methods: turn off taps, fix leaks, take shorter showers, use bucket instead of pipe for washing car, water plants in evening (less evaporation), drip irrigation in farming.
Rainwater harvesting: collecting rainwater for later use. Rooftop harvesting - rain collected from roof - stored in underground tank - reused for household purposes or to recharge groundwater. Traditional methods: stepwells (India), ponds, check dams.

Draw a rooftop rainwater harvesting diagram: house roof - pipes - filter - underground storage tank - pump - use. Label each part. Make a "Water Saving Tips" poster with 8 illustrated tips that Nandika can stick on the bathroom wall at home!

Water audit at home: For one day, Nandika tracks how much water her family uses for: drinking, cooking, bathing, toilet, washing clothes, gardening. Estimate in litres. Identify the biggest use. Suggest 3 ways that use could be reduced. Present findings to family at dinner!

Draw "Water" mind map: Sources - Properties - Water Cycle (4 steps) - Purification methods - Conservation - Rainwater Harvesting - Waterborne diseases. Add key facts and small icons to each branch.

Draw water cycle diagram from memory - without looking at notes. Label all 4 processes and draw all features (sun, clouds, rain, ocean, mountains, river). Compare with notes. Redo any missing parts.

10 questions: water cycle, purification, conservation, properties. Score 8+/10 target. Science Bonus: describe in 2 sentences what happens to rainwater after it falls on the ground.

Food provides nutrients our body needs. 6 main nutrients: Carbohydrates (energy - rice, bread, potato), Proteins (growth & repair - dal, egg, meat, milk), Fats (energy store & warmth - butter, oil, nuts), Vitamins (protect from disease - fruits, vegetables), Minerals (bones & body functions - calcium in milk, iron in spinach), Water (transport & cooling - 2-3 litres daily). Roughage/Fibre (aids digestion - whole grains, vegetables).

Draw the Food Pyramid (or plate method): Base (grains - eat most), next layer (vegetables & fruits), then proteins, then dairy, then fats/oils (eat least). Label each section with examples. Make a table: Nutrient | Function | Food Sources | Deficiency Disease. Fill in all 6 nutrients.

Meal analysis: Look at what Nandika had for breakfast and lunch today. Classify each food item into the nutrient category. Is the meal balanced? What is missing? What would she add to make it a perfectly balanced meal? Draw the plate and label it!

Key vitamins and their roles: Vit A - eyesight, skin (carrots, eggs). Deficiency: Night blindness. Vit B - energy, nerves (whole grains, legumes). Deficiency: Beri-beri. Vit C - immunity, wound healing (citrus fruits, amla). Deficiency: Scurvy. Vit D - calcium absorption, bones (sunlight, fish, eggs). Deficiency: Rickets. Minerals: Iron (blood) - Anaemia if deficient. Calcium (bones) - Weak bones. Iodine (thyroid) - Goitre.

Make a MASTER TABLE: Vitamin/Mineral | Food Source | Function | Deficiency Disease. Fill in all vitamins (A, B, C, D) and minerals (iron, calcium, iodine). Draw a body outline and mark where each deficiency causes problems (eyes = Vit A, legs bowing = Rickets, gums = Scurvy, neck swelling = Goitre).

Sunlight experiment: Spend 15 minutes outside in morning sun. Discuss: Why is morning sunlight safe? (Less UV). How does sunlight make Vitamin D in skin? Write 3 ways Nandika can get more Vitamin D naturally. Connect to her outdoor play time in the schedule!

Digestion = breaking down food into small molecules the body can absorb. Journey of food: Mouth (teeth chew, saliva softens, starch digestion begins) - Oesophagus (food tube - carries food to stomach) - Stomach (acid breaks down food, churns it) - Small intestine (most digestion + absorption of nutrients into blood) - Large intestine (water absorbed, waste formed) - Rectum & Anus (waste expelled).

Draw the human digestive system clearly: Mouth - Oesophagus - Stomach - Small Intestine - Large Intestine - Rectum - Anus. Label each organ. Write its main function next to it. Also label: Liver (produces bile to digest fats) and Pancreas (digestive juices). This diagram is in every Class IV exam!

Simulate digestion: Put a piece of bread in a zip-lock bag (stomach). Add a little water (stomach acid/saliva). Squeeze and crush it (stomach churning). Notice how it breaks into mush. This is mechanical digestion! Add a drop of lemon juice (acid). Observe. Write what happened at each step.

Hygiene = practices that maintain health and prevent disease. Personal hygiene: brush teeth twice daily, wash hands before eating and after toilet, bathe daily, clip nails, wear clean clothes. Communicable diseases spread from person to person: Common Cold, Flu, Chickenpox, Cholera, Malaria (mosquito), Dengue (mosquito). Prevention: vaccinations, mosquito nets, clean water, hand washing, balanced diet, exercise, enough sleep.

Make a "Healthy Living Wheel" divided into 8 sections: Diet, Exercise, Sleep, Hygiene, Clean water, Vaccination, No smoking, Positive thinking. For each, write one specific action. Draw a germ with a big X through it, surrounded by all the prevention methods. Fun and memorable!

Germ experiment: Rub hands with a small amount of glitter (pretend germs). Now just rinse with cold water. How much glitter remains? Now wash properly with soap for 20 seconds. Check again. This visually demonstrates why handwashing with soap is essential and rinsing alone is not enough!

Draw "Food & Health" mind map: Nutrients (6 types) - Food Groups - Balanced Diet - Deficiency Diseases - Digestive System - Personal Hygiene - Disease Prevention. Connect related nodes - e.g. Vitamin C - Scurvy prevention - citrus fruits - diet.

Draw the digestive system from memory. Label all organs and write their main function. Check against notes. Redraw any organ drawn incorrectly. The order must be perfect!

10 questions: nutrients, deficiency diseases, digestion, hygiene, disease prevention. Target 8+/10. Create a "Deficiency Disease Match" card game - match disease to vitamin to food source. Play with Papa!

Weather = atmospheric conditions at a specific place at a specific time (changes daily). Climate = average weather of a region over a long period (30+ years). Elements of weather: temperature, humidity, rainfall, wind speed, cloud cover.
Seasons of India: Summer (March-June, very hot), Monsoon (July-September, heavy rains), Autumn (October-November, cool and dry), Winter (December-February, cold). India's climate is called Tropical Monsoon climate.

Draw India's 4 seasons in 4 quadrants: draw the sun (summer), rain clouds (monsoon), falling leaves (autumn), snowflakes/warm clothes (winter). Write months and key characteristics for each. Make a weather observation chart - record actual weather outside for 5 days in a table!

Weather observer: Each morning for 5 days, Nandika records: temperature (ask Mama/check phone), cloudy/sunny/rainy, wind (still/breezy/windy). At the end of 5 days, identify the pattern. Is it typically summer weather for Greater Noida in May/June? What does this tell us about local climate?

Air is a mixture of gases: Nitrogen (78%), Oxygen (21%), Carbon Dioxide (0.04%), Argon and other gases. Uses of air: breathing, burning, flying, weather. Air pollution: harmful substances in air. Sources: vehicle exhaust, factory smoke, burning of fuels, crop burning, dust. Pollutants: CO2, CO (carbon monoxide), SO2, smoke particles. Effects: respiratory diseases (asthma, bronchitis), acid rain, global warming, smog.

Draw a pie chart of air composition (Nitrogen 78%, Oxygen 21%, Others 1%). Draw a "Causes and Effects of Air Pollution" diagram showing arrows from sources (vehicles, factories) to effects (acid rain, global warming, disease). Draw the greenhouse effect with labels.

Pollution detector: Rub a white tissue on a window surface, the back of a fan, or a shelf near a road. The dark smudge you see IS pollution - particulate matter. In a city like Greater Noida/Delhi NCR, the smudge will be significant. Write what you found and why it matters for health.

Soil is the topmost layer of Earth's crust. Layers of soil (Soil Profile): Topsoil (humus-rich, supports plant growth), Subsoil (less humus, some minerals), Bedrock (hard rock below).
Types of soil: Sandy (large particles, drains fast, less fertile), Clayey (fine particles, holds water, can be heavy), Loamy (mix of sand, clay, silt - most fertile, ideal for farming).
Soil is formed by weathering of rocks. Takes hundreds of years to form 1 cm of topsoil!

Draw a soil profile diagram showing 3 layers (topsoil/subsoil/bedrock) with labels and descriptions. Make a table comparing 3 soil types: Texture | Water retention | Fertility | Best crops. Draw soil particles: sandy (large dots), clayey (tiny dots packed tight), loamy (mixed).

Soil test: Collect 3 soil samples from different spots (garden, near road, pot soil). Put each in a separate jar of water. Shake and let settle for 1 hour. Observe: which settled fastest? (Sandy settles first). Which water stayed cloudy longest? (Clayey). Which had most visible layers? Write observations.

Natural disasters: sudden events caused by nature that cause damage. Types: Earthquake (shaking of Earth's crust), Flood (overflow of water), Drought (long period without rain), Cyclone (violent tropical storm with strong winds), Tsunami (giant sea waves caused by undersea earthquake), Volcano (molten rock erupting), Landslide (soil/rocks sliding down a slope).
India-specific: Earthquakes in Himalayan zone, Cyclones in coastal areas, Floods in river plains, Drought in Rajasthan.

Draw India's map and mark: Earthquake zones (North, Northeast, West), Cyclone-prone states (Odisha, AP, Tamil Nadu), Flood zones (Assam, Bihar, UP), Drought zones (Rajasthan, Maharashtra). Draw the Richter Scale for earthquakes (1-10). Write preparedness tips for any 2 disasters.

Disaster preparedness plan: Make an emergency kit list for your home (for any disaster) - include: water, food, torch, first aid kit, phone charger, documents, warm clothes, whistle. Discuss with family: What is the evacuation plan for your home? Where would you meet if separated?

Draw "Our Environment" mind map: Weather & Climate - Seasons - Air composition & pollution - Soil types - Natural disasters - Disaster preparedness. Add key facts to each branch. Use green for positive (clean air, good soil) and red for negative (pollution, disasters).

Write from memory: Air composition percentages - 4 seasons of India with months - 3 soil types and their characteristics - 5 natural disasters with Indian examples - 4 air pollution sources.

10 questions across all week's topics. Special bonus: answer in full sentences, not just one word. Full sentence practice = better marks in school exams. Target: 8/10.

Force = a push or pull that can: move a stationary object, stop a moving object, change speed, change direction, change shape. Types of force: Muscular (body muscles), Gravitational (pulls everything down - why we don't float!), Magnetic (magnets attract iron), Friction (opposes motion between surfaces), Electrostatic (static electricity), Air resistance (wind pushing on moving objects), Water resistance (water pushing on things moving through it).

Draw a table: Type of Force | Direction | Example | Useful or Harmful. Make a "force in daily life" picture - draw situations showing each force type (magnet picking nails, rain falling down due to gravity, rubbing hands creating friction heat). Label each force type. Draw arrows showing direction of each force!

Friction experiment: Slide a book across: a smooth table, a rough carpet, a polished floor. Time each one! Which surface has most friction? Which has least? Why do car tyres have grooves? Why are shoes given rubber soles? Connect observations to the concept of friction!

Simple machines make work easier by changing the size or direction of force. 6 types: Lever (seesaw, scissors, tongs - has fulcrum, effort, load), Wheel & Axle (bicycle, steering wheel, doorknob), Pulley (lifting heavy weights - well, crane, flag on flagpole), Inclined Plane (ramp, sloping road, screw), Wedge (knife, axe, nail, zipper), Screw (jar lid, bolt, spiral staircase). Modern machines are combinations of simple machines.

Draw each of the 6 simple machines with a labelled diagram and one household example. For the lever: label fulcrum (pivot point), effort (force applied), load (object being moved). Draw the 3 classes of levers: Class 1 (fulcrum in middle - seesaw), Class 2 (load in middle - wheelbarrow), Class 3 (effort in middle - tweezers).

Simple machine hunt: Find 10 objects in the house and identify which simple machine each is. Kitchen: knife (wedge), bottle opener (lever), scissors (lever). Bathroom: tap (wheel & axle), screw cap (screw). Door: doorknob (wheel & axle), hinges (lever). Make a table and draw each!

Energy = ability to do work. Sources: Non-Renewable (limited, will run out): Coal, Petroleum (oil), Natural Gas, Nuclear energy. These are fossil fuels - formed from ancient organisms over millions of years.
Renewable (unlimited, naturally replenished): Solar (Sun), Wind, Hydro (water), Geothermal (Earth's heat), Biomass (wood, biogas). Renewable energy is clean - produces little/no pollution. India is investing heavily in solar and wind energy!

Draw two columns: Renewable | Non-Renewable. Under each, draw and label energy sources with small icons (sun, wind turbine, coal mine, oil rig, dam). Draw India's energy mix as a pie chart. Mark India's major: Solar plants (Rajasthan), Wind farms (Tamil Nadu, Gujarat), Hydroelectric dams (Northeast, Himalayas).

Energy audit at home: List all appliances and which energy source powers them (electricity from grid, LPG gas, solar water heater if any). Estimate which uses most energy. Make 3 suggestions to reduce energy consumption. Calculate: if you turn off a fan for 2 hours daily, how much electricity is saved in 40 days?

Light: travels in straight lines, fastest thing in universe (3,00,000 km/s). Sources: Natural (Sun, fire, stars), Artificial (bulb, candle, torch). Transparent (glass, water - light passes through), Translucent (tissue paper, frosted glass - partial light), Opaque (wood, metal - no light passes).
Shadow: formed when opaque object blocks light. Properties: same shape as object, always on opposite side from light source, longer at sunrise/sunset, shorter at noon.
Sound: caused by vibration, needs a medium to travel (cannot travel in vacuum), travels slower than light (hence thunder after lightning).

Draw: a torch shining on a ball creating a shadow - label light source, opaque object, shadow. Draw transparent/translucent/opaque objects examples. Draw sound waves (concentric circles) spreading from a vibrating tuning fork. Table: Properties of light vs properties of sound.

Shadow puppet show: Use a torch in a dark room. Make shadow puppets with hands on a white wall. Observe: what happens to shadow size when hand moves closer to wall? Farther from wall? Closer to torch? Farther from torch? Record observations. This teaches shadow formation in the most fun way!

Draw "Physics" mind map: Force (types) - Simple Machines (6 types) - Energy (renewable/non-renewable) - Light (properties, shadow) - Sound (vibration, medium). Connect nodes - e.g. Force - Machines (machines use force) - Energy (machines use energy).

Draw from memory: (1) Lever with 3 parts labelled, (2) Shadow formation diagram, (3) Renewable vs non-renewable energy sources chart. Check against notes. Any errors = redraw immediately.

10 mixed questions across all 4 topics. Include 2 application questions: "Name 5 simple machines in a bicycle" and "Why should we use solar energy instead of coal?" Target: 8/10.

Our Solar System has: The Sun (star at centre, source of all energy), 8 planets (in order from Sun): Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Mnemonics: "My Very Energetic Mother Just Served Us Nachos". Other objects: Moons (satellites), Asteroids (rocky debris between Mars and Jupiter), Comets (ice + rock, visible with tails), Dwarf planets (Pluto).
Earth is the 3rd planet. Only planet with life. Called the "Blue Planet".

Draw the solar system: Sun in centre with 8 planets in correct order, correct relative sizes, and orbits shown as ellipses. Label each planet. Note special features: Jupiter is largest, Saturn has rings, Mars is "Red Planet", Venus is hottest. Write planet facts table: Planet | Order | Special Feature.

Scale model: Use fruits/balls to represent planets. Sun = basketball, Jupiter = tennis ball, Earth = small pea, Mercury = mustard seed. Line them up on the floor in order. Now appreciate the VAST distances between them. This makes the solar system real and memorable!

Rotation: Earth spins on its own axis (tilted at 23.5°). Takes 24 hours (1 day). Causes: Day and Night. Sun rises in East, sets in West because Earth rotates West to East.
Revolution: Earth travels around the Sun. Takes 365.25 days (1 year). Causes: Seasons (because of Earth's tilted axis - different parts get more/less sunlight at different times of year). The 0.25 day accumulates - every 4th year = Leap Year (366 days, extra day in February).
Moon revolves around Earth in 27.3 days.

Draw TWO diagrams: (1) Earth rotating on its axis - show day side (facing Sun) and night side (away from Sun). (2) Earth's revolution around Sun in an ellipse - mark the 4 seasons at different positions. Note: Earth is tilted - draw the tilt correctly (23.5°). These are essential exam diagrams!

Demonstrate with torch: In a dark room, Papa holds a torch (Sun). Nandika holds a ball (Earth) and slowly rotates it - observe how one half is lit (day) and the other is dark (night). Now walk slowly around Papa while rotating - this shows revolution AND rotation simultaneously. Fun and visual!

Pollution = harmful substances (pollutants) added to environment. Types: Air pollution (vehicles, factories, smoke - respiratory diseases, global warming), Water pollution (sewage, factory waste, plastic in rivers/oceans - waterborne diseases, kills aquatic life), Soil/Land pollution (plastic, chemicals, fertilisers - harms soil organisms, reduces fertility), Noise pollution (vehicles, loudspeakers, construction - hearing loss, stress, disturbs wildlife), Plastic pollution (takes 400-1000 years to decompose - kills marine animals).

Draw a central diagram: "Pollution" in the middle - 4 branches (Air/Water/Soil/Noise) - each with: 2 causes, 2 effects, 1 solution. Colour code: grey for air, blue for water, brown for soil, orange for noise. This single diagram covers the entire pollution topic efficiently!

Pollution audit of neighbourhood: From her window or on a short walk, Nandika observes and counts: vehicles passing (air pollution source), plastic waste visible, construction noise, drains/water bodies. Write a "Pollution Report" of her neighbourhood - what is the biggest pollution problem? What can residents do?

Reduce: use less - buy less packaged food, less plastic, use both sides of paper, shorter showers. Reuse: use again - cloth bags, glass bottles, repurpose containers. Recycle: convert waste into new product - paper, glass, metal, some plastics can be recycled.
Sustainable living = meeting our needs without destroying the ability of future generations to meet theirs. Actions: use public transport, grow your own food, composting (converting organic waste to fertiliser), solar panels, rainwater harvesting.

Draw the "3Rs Triangle": Reduce (top) - Reuse (left) - Recycle (right) with examples for each. Draw a composting diagram: food waste + dry leaves - compost bin - fertiliser - garden. Make a personal "Eco-Pledge" poster with 5 commitments Nandika will keep for life!

Start a compost bin: Collect fruit peels, vegetable scraps, dry leaves. Layer them in a container. Add a little soil. Keep slightly moist. In 4-6 weeks it becomes rich compost for plants! Also: collect old newspapers and make a paper bag - this is reusing! Document both with photos or drawings.

Draw "Earth & Beyond" mind map: Solar System (8 planets) - Earth's Movements (rotation/revolution) - Moon & Seasons - Pollution (4 types) - 3Rs - Sustainable Living. Connect where topics link - e.g. Fossil fuels (energy week) - Air pollution - Climate change - Seasons affected.

Draw from memory: (1) Solar system with planets in order, (2) Earth's rotation causing day/night, (3) Pollution diagram with causes & effects. Check all diagrams against notes. Perfect diagram = perfect marks!

10 questions across solar system, Earth's movements, pollution, 3Rs. Include 1 thinking question: "How does deforestation contribute to climate change, soil erosion, water cycle disruption AND loss of biodiversity - all at once?" (Cross-topic thinking!)

Connect the living world topics: Plants (photosynthesis) - produce oxygen and food - Animals eat plants - Food chain formed - Decomposers return nutrients to soil - Soil supports plants - Cycle complete! Draw this as a circular diagram showing how all living things are interconnected. Add humans and our impact at each stage.

From memory, write: photosynthesis equation, 2 root types with examples, food chain with labels, 4 animal adaptations (camel), 3 deficiency diseases with vitamins, digestive system organs in order. Check each against notes. Re-study any incorrect answers.

15 mixed questions on living world topics. Write answers in full sentences. Self-check. Score. Revisit weakest 2 topics before tomorrow's session.

Connect the physical world: Sun (energy) - drives water cycle (evaporation) - weather - seasons - affects plant growth - food production - human health. Also: Fossil fuels - burned for energy - air pollution - global warming - climate change - extreme weather - floods/droughts - food shortage. Draw this as a cause-effect chain diagram!

From memory: water cycle 4 steps with diagram, 3 soil types comparison, 6 simple machines with examples, 8 planets in order, rotation vs revolution, 4 pollution types. Check all. Redo any that are wrong.

15 mixed questions on earth science, physics and environment topics. Include one diagram question. Self-check and score.

Nandika chooses ONE environmental topic she cares most about: Air Pollution in Delhi NCR / Save the Ganga / Solar Energy in India / Save the Tiger / Rainwater Harvesting. Research using what she has learned + discuss with family. Prepare a 1-page illustrated report.

Report must include: Title & Introduction (what is the problem), Current Situation (facts & statistics), Causes (why is it happening), Effects (who is affected and how), Solutions (3 things that can be done), My Personal Action Plan (what I, Nandika, will do). Illustrated with drawings or diagrams.

Nandika presents her Eco-Report to the family in a 5-minute presentation. She must: speak confidently (confidence building!), use subject vocabulary correctly (EVS knowledge!), make eye contact, answer 2 questions from family. This is the perfect integration of Science + Public Speaking!

Review all 7 mind maps created during the holiday. For each topic, can Nandika: recall 5 key facts? Draw the main diagram? Answer one question? Write 2 connecting ideas? Time each topic: 2 minutes each x 7 topics = 14 minutes. This is exam-speed revision!

Create the ultimate EVS/Science fact sheet: photosynthesis equation - 8 planets mnemonic - 4 water cycle steps - 4 deficiency diseases - 6 simple machines - 3 soil types - 4 pollution types - 3Rs. One page, both sides. This is Nandika's personal science quick-reference card!

30-question mock test across ALL 7 weeks' topics. Time: 30 minutes. Mix of MCQ (10), fill-in-blank (10), short answer (8), diagram (1), thinking question (1). Self-check. Calculate percentage. Review every wrong answer with fresh study of that concept.

40-minute comprehensive Science test: Section A - Living World: plants, animals, food, health (15 marks). Section B - Physical World: water, weather, force, energy, light (15 marks). Section C - Earth & Environment: solar system, pollution, conservation (10 marks). Section D - Diagrams (10 marks): photosynthesis, water cycle, digestive system, solar system. Total: 50 marks.

After the test: Read through all 8 weeks of notes. Count how many topics are fully understood. Compare Day 1 notes with Day 40 notes - the improvement in quality, depth and clarity will be dramatic! Note: Which 3 topics did she enjoy most? Which scientist does she admire? Why?

Nandika writes: "I love Science because ___. My favourite discovery this holiday was ___. One question I still have about the world is ___. As a scientist, I promise to always ___." Sign it and put it in the Confidence Journal. This is her scientist identity statement!