Sources of Heat

NCERT anchor: NCERT Looking Around Class 1 — Theme: Weather and Seasons (where heat comes from)

• Heat can come from the Sun, a fire, or a stove.
• Heat makes cold things warm, like the Sun warming the ground.
• We use heat carefully for cooking, and stay safe near it.

1. The Sun

Level 1 (Verbal): The Sun warms the Earth every day — that is why afternoons feel hot.

Level 2 (Symbolic): Sun = the biggest natural source of heat and light for us.

Visual: A bright Sun with rays reaching down to warm the ground.

2. Fire and stove

Verbal: A stove flame or a fire gives strong heat — used to cook food.

Symbolic: Fire/stove = a made source of heat, needs a grown-up's care.

Visual: A blue stove flame under a pan.

3. Staying safe near heat

Keep a safe distance from fire and stoves. Let a grown-up handle hot pots and pans.

Warming a cold chapati

Step 1 — Chapati is cold from the fridge.
Step 2 — Grown-up places it on the hot stove/tawa.
Step 3 — Heat from the stove flame warms the chapati.
Step 4 — Chapati becomes warm and soft again.
Answer: the stove flame is the source of heat that warmed the chapati.

• Name two sources of heat you know.
• Why does the ground feel warm on a sunny afternoon?
• Who should light the stove at home?
• Stretch: Why do we feel cooler standing in the shade than standing in the Sun?

Revision tip: Say aloud: 'Sun, fire, stove — these give heat, and I stay safe near them.'

Open the Practice tab for graded questions on Sources of Heat.