Q1.
From your observation write down at least three things that you have noticed: • Moving • Providing light • Making a sound • Making things cool • Making things hot
Answer
Under each heading, write things you have actually seen. Here is a filled sample.
| What is happening | Things I have noticed |
|---|---|
| Moving | A ceiling fan turning · a bus on the road · a bird flying · leaves shaking in the breeze · a bullock cart |
| Providing light | The Sun · a tube light · a diya · a torch · a mobile phone screen |
| Making a sound | The school bell · a dholak · a scooter horn · a radio · thunder |
| Making things cool | A fridge · a cooler · an air conditioner · a matka keeping water cool · the breeze on your face |
| Making things hot | A gas stove · an iron · a geyser · the Sun on a summer afternoon · a wood fire |
Why these five headings matter: These are the five jobs energy does. Whenever you see one of these five things happening, energy is at work there. So this list is really a list of places where energy is hiding.
Did you know? The Flying Snake, which lives in Indian forests, can glide through the air by flattening its body. Even that gliding is movement — so it too needs energy, and the snake gets it from its food.