Here are three easy ways to say that sentence for a 6-year-old who spends time with plants, animals, and fresh air:
- New mountains are pointy and very tall, but old mountains are low and smooth.
- Young mountains stand up sharp and high; old mountains have gentle, rounded tops.
- Fresh mountains have jagged peaks; old mountains are worn down and look like soft hills.
Why this happens (simple steps):
- When mountains are new, they form quickly and look sharp.
- Over many years, wind, rain, plants, and animals slowly break and wear away the rock.
- This makes the tall sharp peaks become shorter and rounded, like gentle hills.
Nice work noticing nature — living in the countryside helps you see these changes!