Mon Prof Augmenté
Mangrove Coast on the Move
Along one coast, waves wear away a muddy edge while calm water drops new mud at the other end. The mangrove belt slowly shifts toward the side where fresh mud collects.
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Age 12: open this week
Browse Age 12
In the picture
- Badge 1 sits on the exposed roots of a toppled mangrove at the eroded edge.
- Badge 2 sits on the breaking wave that cuts into the muddy bank.
- Badge 3 sits on the broad current flowing along the shore.
- Badge 4 sits on young mangrove shoots on the new mudflat.
Examples
- A river bend where one bank crumbles and the other builds a sandbar.
- A beach where winter storms strip sand from one end and summer waves return it to another.
Key takeaways
- Eroded mud is carried by currents and can settle somewhere else.
- Mangroves can spread into new mudflats as older roots are lost.
Carry on in the app
Three questions on this lesson. It has left the free week, so its quiz is for subscribers.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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