A Wonderleaf question
Why do clouds change shape?
a real page from the book
Clouds change shape because they are crowds of tiny water drops, not solid objects. Winds push different parts in different directions, while some drops disappear into vapor and others form where rising air cools. So a cloud is always being moved, thinned, and rebuilt.
That is why a cloud can look like one thing, then something else a minute later. Its edge is especially busy: dry air can erase small wisps, while a fresh puff may appear nearby where moist air gathers and cools enough to become visible.
Wonder words
- droplets
- vapor
- evaporate
- wisps
Try it out
Lie outside or look through a window and name one cloud shape, then check again after five minutes.
Read the whole picture book
Watercolour scenes, straight answers, about three minutes cover to cover.
Open the picture bookKeep wondering
- Why do mountains change the weather?
- Why is frost sparkly?
- Why is the sky sometimes gray?
- How do meteorologists predict the weather?
- Why does the air smell different after rain?
- Why is fog close to the ground?
And the next question?
Ask anything — Wonderleaf writes and illustrates a picture book for it. That's the whole idea.
Ask your own question