🚀 Class 6 NCERT Curiosity

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Science comes alive
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Chapters

54+

Diagrams

35+

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🔬 Chapter 1

The Wonderful World of Science

Science is a way of thinking, observing and doing things to understand the world we live in. The Scientific Method shows us how scientists ask questions and find answers step by step.

Activity 1.1–1.3

The Scientific Method — Step by Step

How scientists (and we) find answers — from observing to concluding. Each step flows into the next.

🌿 Chapter 2

Diversity in the Living World

Plants and animals show amazing diversity. We can group them based on features like size, roots, leaves and seeds.

Fig. 2.3

Types of Plants

Trees, Shrubs and Herbs — grouped by height and stem structure.

Fig. 2.4

Types of Leaf Venation

Reticulate venation (net-like, e.g. mango) vs Parallel venation (parallel lines, e.g. grass, maize).

Fig. 2.5

Types of Roots

Taproot system (one main root, e.g. mustard) vs Fibrous root system (many thin roots, e.g. grass).

Fig. 2.6

Dicot and Monocot Seeds

Dicot seeds have two cotyledons (e.g. rajma). Monocot seeds have one cotyledon (e.g. maize).

🥦 Chapter 3

Nutrition in Plants and Animals

Our food contains nutrients that our body needs. Carbohydrates, fats, proteins, vitamins, minerals and water are the main components of food.

Fig. 3.2 · 3.3 · 3.4

Components of Food — Nutrients

The six main nutrients — their functions and food sources as shown in the textbook.

Fig. 3.5 · Activity 3.5

Photosynthesis — How Plants Make Food

Plants are autotrophs. They use sunlight, water (from roots) and CO₂ (from air) to make glucose and release oxygen. This happens in the chloroplasts of leaves.

Activity 3.3

Iodine Test for Starch

Iodine solution turns blue-black when starch is present. This is used to test for carbohydrates in food.

🧲 Chapter 4

Exploring Magnets

Magnets attract magnetic materials like iron. Every magnet has two poles — North (N) and South (S). Like poles repel, unlike poles attract.

Fig. 4.2

Magnets of Different Shapes

Bar magnet, horseshoe magnet, ring magnet, cylindrical magnet — all have N and S poles.

Fig. 4.3 · 4.4

Like Poles Repel · Unlike Poles Attract

When two magnets are brought close — like poles push away, unlike poles pull together.

Fig. 4.5 · 4.6

Freely Suspended Magnet · Magnetic Compass

A freely suspended magnet always aligns in the North–South direction. A magnetic compass uses this property for finding directions.

Fig. 4.4

Iron Filings near a Bar Magnet

Iron filings arrange in curved lines showing the magnetic field pattern around a bar magnet — strongest at the poles.

📏 Chapter 5

Measurement of Length and Motion

Measurement needs standard units. The SI unit of length is metre (m). A ruler must be placed correctly to get an accurate reading.

Fig. 5.4 · 5.5 · 5.6

Correct Method of Using a Scale

Eye must be directly above the marking (Position B). Scale must lie flat. For a broken scale, note the starting reading.

Activity 5.1–5.3

Standard vs Non-Standard Units

Handspan, cubit, arm-length are non-standard (vary person to person). Metre, centimetre are standard — same for everyone.

⚗️ Chapter 6

Materials Around Us

Objects are made of different materials. We can group materials based on properties like transparency, solubility, hardness, and whether they float or sink.

Fig. 6.5

Transparent, Translucent and Opaque Materials

Transparent materials allow all light through. Translucent allow some. Opaque allow none.

Activity 6.7

Soluble and Insoluble in Water

Salt and sugar dissolve in water (soluble). Sand and chalk do not dissolve (insoluble).

Activity 6.8

Objects that Sink or Float

Cork, wood and plastic float on water. Stone, iron nail and coin sink in water.

🌡️ Chapter 7

Temperature and its Measurement

Temperature tells us how hot or cold something is. It is measured using a thermometer. The Celsius scale is used in clinical thermometers.

Fig. 7.3

Clinical Thermometer — Parts and Reading

A clinical thermometer has a bulb, narrow tube, scale (35°C–42°C), kink (to hold mercury reading), and is read at eye level.

Activity 7.3–7.5

Celsius Scale — Key Reference Points

Water freezes at 0°C, boils at 100°C. Normal human body temperature is 37°C. Room temperature is about 25–30°C.

💧 Chapter 8

A Journey through States of Water

Water exists in three states — solid (ice), liquid (water) and gas (water vapour). Changes between states happen due to heating and cooling.

Fig. 8.5

Conversion of Different States of Water

Melting (solid→liquid), Freezing (liquid→solid), Evaporation (liquid→gas), Condensation (gas→liquid). Arrows show the direction of change.

Fig. 8.6 · Activity 8.6

Water Cycle — Evaporation and Condensation

Water evaporates from oceans/ponds (heated by Sun), rises, cools to form clouds (condensation), and falls as rain (precipitation).

🧹 Chapter 9

Methods of Separation in Everyday Life

Mixtures can be separated using different methods depending on the properties of their components — size, density, solubility.

Fig. 9.1

Handpicking

Picking out undesirable material by hand. Used when the particles to be removed are large enough to pick.

Fig. 9.4

Winnowing

Separating grain from husk using wind. Heavier grains fall straight down; lighter husk is blown away.

Fig. 9.5

Sieving

Fine particles pass through holes in a sieve; larger particles are retained. Used to separate flour from bran.

Fig. 9.6

Obtaining Salt from Seawater — Evaporation

Seawater is collected in shallow ponds. Sun evaporates the water, leaving behind salt crystals.

Fig. 9.7 · Activity 9.4

Filtration — Separating Insoluble Solids

A filter paper in a funnel traps insoluble solids (like mud/chalk) while the liquid (filtrate) passes through into a beaker.

Fig. 9.2 · 9.3

Sedimentation & Decantation

Heavy particles settle at the bottom (sedimentation). The clear liquid on top is carefully poured off (decantation).

Activity 9.1

Magnetic Separation

A magnet attracts iron filings (magnetic) from a mixture with sand (non-magnetic), separating them without touching.

🌱 Chapter 10

Life Cycle of a Plant

A seed germinates when it gets water, warmth and air. The seedling grows into a plant that produces flowers, fruits and new seeds — completing the life cycle.

Fig. 10.4

Life Cycle of a Bean Plant

Seed → Germination (root emerges first, then shoot) → Seedling → Young Plant → Mature Plant → Flower → Fruit → Seeds (cycle repeats).

Fig. 10.2 · 10.3

Conditions for Germination

A seed needs water, warmth (correct temperature) and air (oxygen) to germinate. It does NOT need light for germination.

🌬️ Chapter 11

Air Around Us

Air is a mixture of gases. It is mainly nitrogen (78%) and oxygen (21%), with small amounts of argon, carbon dioxide and other gases.

Fig. 11.1

Composition of Air

Air contains: Nitrogen 78%, Oxygen 21%, Argon + Carbon dioxide + other gases 1%.

Fig. 11.4

Rainwater Harvesting

Rainwater is collected from rooftops and stored in tanks or directed underground to recharge groundwater — an ancient Indian practice.

🌌 Chapter 12

Beyond Earth

Stars are huge balls of hot gas that shine by themselves. Groups of stars forming patterns are called constellations. The Moon is Earth's natural satellite.

Fig. 12.3 · 12.4

Stars and Constellations — Big Dipper & Orion

Big Dipper (Saptarishi / Ursa Major) — 7 bright stars in a dipper shape. Orion — a well-known constellation visible in winter. Stars are connected to show the pattern.

Activity 12.3–12.4

Moon — Phases and Orbit

The Moon orbits the Earth. As it moves, we see different lit portions — from new moon (no light) to full moon (full circle). It takes about 28 days per cycle.

Science comes alivewhen you explore it!