CBSE Class 6 NCERT • Chapter 1

Science Around Us

Topic: Food, Water States, Materials & Kitchen Wonders

🃏 3D Study Flashcards 🍲 Kitchen & Water Wonders ⚡ Topic Quiz

1. Science in Our Food

What mysteries hide inside the meals we eat across India?

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🌱 Seeds to Meals

Across India, we eat diverse dishes made of grains, pulses, vegetables, and spices.

Seed Mystery: How does a tiny seed know how to sprout into a big plant?
Growth & Energy: Science explains how nutrients help our body grow and stay healthy.

2. States of Water

How does water behave when heated or cooled?

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💧 Ice, Water & Steam

Water is everywhere—from raindrops and rivers to your kitchen tap:

Cooling (Freezing): Turns liquid water into solid Ice.
Heating (Boiling): Turns liquid water into gaseous Steam / Vapour.
Water Cycle: Drives clouds and rain!

3. Everyday Materials

Why are different objects made of different substances?

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🧱 Properties of Materials

Your notebook is paper, your key is metal, your ruler is plastic, and your eraser is rubber!

Why different materials? Each material has unique properties (hard, soft, shiny, transparent).
Separation: Science shows us how to group and separate mixtures.

4. Kitchen Wonders

What scientific experiments happen every day in our kitchen?

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🥟 Kitchen = First Lab

You don’t need fancy test tubes to observe science:

Puffing Puri: Water inside dough turns to steam in hot oil, making the puri balloon up!
Milk to Curd: Friendly tiny bacteria turn warm milk into curd.

🥟 Kitchen Wonder #1: Why does one side of a puffed Puri become thinner? ▼

NCERT Observation When rolled dough hits hot oil, the trapped moisture inside turns into hot steam and pushes outward, puffing the puri like a ball. Because one side floats facing up while the bottom touches hotter oil first, one layer stretches thinner than the other!

🧊 Water Mystery: How are Ice, Tap Water, and Clouds the exact same substance? ▼

Temperature Magic Whether it is hard ice in your freezer, flowing water in a river, or steam escaping a boiling kettle, it is all water! Heating and cooling change how water behaves and how we measure temperature.

🎒 School Bag Check: How many different materials are around you right now? ▼

Everyday Science Look inside your pencil box: a wooden pencil, a rubber eraser, a plastic scale, and a steel sharpener blade. Science helps us test why steel cuts wood while rubber rubs off graphite!

1. What happens to water when it is heated to boiling in a kitchen vessel?

A. It freezes into solid ice

❌ Freezing happens when water is cooled, not heated!

B. It turns into steam (vapour)

✅ Correct! Heating liquid water turns it into steam.

C. It turns into metal

❌ Water only changes its state, not into metal. Try again!

2. Which of these is an example of a scientific question you can ask in the kitchen?

A. Why does a puri puff up when fried in hot oil?

✅ Spot on! Observing everyday cooking and asking “Why?” is pure science.

B. Science cannot happen inside a kitchen

❌ Your kitchen is actually one of the best science labs around!

3. Paper, metal, plastic, cotton, and rubber are examples of different ______ around us.

A. Galaxies

❌ Galaxies are in outer space! Try the other option.

B. Materials

✅ Correct! Every object around us is made of one or more materials.

Class 6 NCERT Ch 01: The Wonderful World of Science 102