📖 Chapter 2 of 9 · Green Energy - Basic 1 · Class 5–6
Chapter 2: The Sun's Amazing Energy
How does the Sun give us power?
The Sun pours out light every day. Special flat boards called solar panels catch that sunlight and turn it into electricity. They make no smoke and no noise — just clean power from the sky.
When do solar panels work best?
Solar panels work best in bright daytime sunshine. On sunny days they make lots of power; on cloudy days, less; and at night they rest, using the power that was stored during the day.
Story Time — The Roof That Drank the Sun
Priya · Madurai, Tamil Nadu
Priya noticed workers fitting shiny dark-blue boards onto her family's roof. “What are those?” she asked. “Solar panels,” said her father. “They are going to drink the sunshine and give us electricity.” Priya giggled. “Can a roof really drink the Sun?”
That afternoon, under the strong Madurai Sun, her father showed her the electricity meter. “Look — the panels are making power right now, just from sunlight.” Priya put her hand up to the warm Sun, then pointed at the glowing meter. “The Sun is filling our house with power!”
“And here is the best part,” her father said. “No smoke, and no bill from anyone. The Sun sends its light for free, and the panels turn it into clean electricity.” Priya thought this was the cleverest thing she had ever heard.
In the evening, when the panels rested, the family still had light. “How, if the Sun is gone?” Priya asked. “We saved some of the day's power in a battery,” her father explained, “like keeping water in a pot for later.”
Priya loved the idea that the bright day could light up the dark evening. “Our roof is a sunshine-catcher,” she declared. And every sunny morning after that, she would look up and say a cheerful “Thank you” to the Sun.
Story Time — The Solar Lamp for Studying
Ravi · a village in Bihar
Ravi loved to study, but in his village the evenings were often dark, and it was hard to read. Then his sister brought home a small solar lamp. “Leave it in the Sun all day,” she said, “and it will give you light all evening.”
Ravi was doubtful. He placed the little lamp on the windowsill in the morning sunshine and went to school. When he came home and switched it on that night, it glowed steady and bright. “It works! It really works!” he cried.
“The lamp caught the sunlight all day and kept it inside,” his sister explained. “Now it is giving that light back to you.” Ravi could hardly believe that the Sun from the morning was helping him read his books at night.
“No smoke, no cost, and it does not run out as long as the Sun shines,” his sister said. Ravi thought of the old smoky lamp they used to use, which stung his eyes. This clean little light was so much better.
That night Ravi studied longer and more happily than ever before, his book bright under the gentle solar glow. “The Sun,” he thought as he read, “is helping me learn.” And he promised himself he would always leave his lamp out to drink the daytime Sun.
Solved Examples
Think first, then read the answer.
1. What do solar panels do?
Show answer
Answer: They catch sunlight and turn it into clean electricity, with no smoke.
2. When do solar panels make the most power?
Show answer
Answer: On bright, sunny days in the daytime.
3. How can we have solar power at night?
Show answer
Answer: We save some of the day's power in a battery to use after dark.
4. Is solar power clean?
Show answer
Answer: Yes — it makes no smoke and does not harm the air.
5. Does sunlight from the Sun cost money?
Show answer
Answer: No — the Sun sends its light for free.
Check Your Understanding
A. Fill in the blanks
- Solar panels catch _______.
- Panels work best on _______ days.
- We save daytime power in a _______.
B. Yes or No
- Solar panels make smoke. ( ___ )
- Solar panels work best in bright sunshine. ( ___ )
- Sunlight is free. ( ___ )
C. Talk about it
- Where have you seen a solar panel?
- What would you power with the Sun?
Check your understanding
Tap an answer to see if it is correct. This is just for fun — nothing is saved.
1. What do solar panels catch?
- Rain
- Sunlight
- Wind
Show answer
B. Sunlight
2. When do solar panels work best?
- Bright day
- Dark night
- Never
Show answer
A. Bright day
3. How do we get solar power at night?
- From a battery
- From the Moon
- We cannot
Show answer
A. From a battery