Sources of Light

NCERT anchor: NCERT Looking Around Class 1 — Theme: Light, Shadows and Reflection (sources of light)

• Name sources of light: Sun, lamp, diya, torch, candle.
• Know the Moon shines by reflecting sunlight — it is not a main source.
• Sort objects as give light vs do not give light.

1. Natural source — the Sun

Level 1 (Verbal): The Sun gives us light during the day — brightest source.

Level 2 (Symbolic): Natural = found in nature without people making it.

Visual: Draw Sun with rays reaching Earth.

2. Man-made sources

Verbal: Diya at Diwali, torch during power cut, tubelight in class.

Visual: Flame or bulb with rays drawn outward.

3. Moon is not a light source

Moon reflects Sun's light — like a mirror. At night it looks bright but does not burn like the Sun.

Diwali evening: which things give light?

Step 1 — List: diya ✓, Sun (already set) ✗, torch ✓, moon (reflects) ✗ as source.
Step 2 — Light diyas — room gets brighter.
Step 3 — Switch off torch — dark again.
Step 4 — Sort: sources = diya, torch, Sun (daytime).
Answer: diya and torch are man-made sources; Sun is natural.

• Name two light sources in your home.
• Is the Sun a natural or man-made source?
• Does a closed book give light?
• Stretch: Why do we use a torch when the Sun has set?

Revision tip: Each evening, name every light source you see — natural vs man-made.

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