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Updated Mar 23, 2026
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How Glaciers Form: A Kids' Guide to Freeze-Thaw Erosion and Corrie Making
Elle Allan
@elleallanx
Corrie Formation and Development
A corrie forms through the combined action of multiple glacial processes, creating a distinctive hollow in the mountainside. The weight of the glacier causes rotational sliding, which leads to the overdeepening of the hollow beneath the ice mass.
Definition: A corrie is a bowl-shaped hollow formed by glacial erosion on a mountainside.
Example: Brown Cove serves as a real-world example of a corrie formation.
Highlight: The formation of a rock lip at the corrie's front edge is crucial, as it can later trap water to form a mountain tarn.
The process involves differential ice movement, where friction causes the ice to slow at the front edge, allowing the characteristic rock lip to develop. This creates the classic armchair-shaped hollow that defines a corrie.
Glacier Formation and Erosion Processes
The formation of glaciers begins with a fundamental imbalance between winter snowfall and summer melting rates. When more snow accumulates than melts, it gradually compacts and transforms into glacial ice. This ice mass then moves downhill under the influence of gravity, initiating various erosional processes.
Definition: Glaciation occurs when snow accumulation exceeds melting over extended periods, leading to the formation of moving ice masses.
The text outlines three primary types of glacial erosion:
Vocabulary: Freeze-thaw erosion involves water entering rock cracks, freezing, expanding, and breaking the rock apart.
Example: Plucking occurs when ice freezes onto bedrock and pulls away loose rocks as the glacier moves.
Highlight: Abrasion happens when rock fragments embedded in the ice act like sandpaper, grinding away at the valley floor during glacier movement.
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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
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This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
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very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
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How Glaciers Form: A Kids' Guide to Freeze-Thaw Erosion and Corrie Making
Elle Allan
@elleallanx
The formation of glaciers process description involves the accumulation of snow and ice, leading to powerful erosional forces that shape landscapes through freeze-thaw erosion in glaciation and other processes.
- Glaciers form when winter snowfall exceeds summer melting rates, creating massive... Show more
Corrie Formation and Development
A corrie forms through the combined action of multiple glacial processes, creating a distinctive hollow in the mountainside. The weight of the glacier causes rotational sliding, which leads to the overdeepening of the hollow beneath the ice mass.
Definition: A corrie is a bowl-shaped hollow formed by glacial erosion on a mountainside.
Example: Brown Cove serves as a real-world example of a corrie formation.
Highlight: The formation of a rock lip at the corrie's front edge is crucial, as it can later trap water to form a mountain tarn.
The process involves differential ice movement, where friction causes the ice to slow at the front edge, allowing the characteristic rock lip to develop. This creates the classic armchair-shaped hollow that defines a corrie.
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Glacier Formation and Erosion Processes
The formation of glaciers begins with a fundamental imbalance between winter snowfall and summer melting rates. When more snow accumulates than melts, it gradually compacts and transforms into glacial ice. This ice mass then moves downhill under the influence of gravity, initiating various erosional processes.
Definition: Glaciation occurs when snow accumulation exceeds melting over extended periods, leading to the formation of moving ice masses.
The text outlines three primary types of glacial erosion:
Vocabulary: Freeze-thaw erosion involves water entering rock cracks, freezing, expanding, and breaking the rock apart.
Example: Plucking occurs when ice freezes onto bedrock and pulls away loose rocks as the glacier moves.
Highlight: Abrasion happens when rock fragments embedded in the ice act like sandpaper, grinding away at the valley floor during glacier movement.
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The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
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Android user
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Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
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Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE Knowunity AI. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user