Open the App

Subjects

Geography

Nov 26, 2025

136

8 pages

Understanding Earth's Layers

user profile picture

ruth @j.up1t_3r

Understanding how our planet is built and how rocks form is like learning Earth's secret recipe! This geology... Show more

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Earth's Structure - The Basics

Think of Earth like a giant layered cake - each layer has its own special properties and job. The inner core sits right at the centre, extending about halfway from Earth's heart to the surface where we live.

Above that lies the mantle, which is basically a massive layer of hot, liquid rock called magma. This is where things get pretty exciting - all that molten rock is constantly moving around beneath us!

The crust is the thin, rocky shell we actually live on. It's made up of huge puzzle pieces called tectonic plates that slowly drift about on top of all that moving magma below.

Quick Fact The crust is incredibly thin compared to Earth's other layers - imagine the skin on an apple, and you've got the right idea!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Rock Formation and Key Processes

Rocks don't just sit there doing nothing - they're constantly changing through some fascinating processes. Erosion gradually breaks down rocks over time, wearing them away bit by bit through wind, water, and weather.

Once rock particles get moved around, deposition takes over. This is simply when all those worn-away bits settle down in new places, like sand collecting at the bottom of a river.

The minerals in rocks are basically the chemical ingredients that make each rock type unique. Some rocks are more durable than others, meaning they're much harder to damage or break apart.

Remember This Erosion breaks rocks down, deposition moves the pieces around - it's like nature's own recycling system!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

The Three Rock Types You Need to Know

There are three main rock families, and each forms in a completely different way. Igneous rocks are the cool kids - literally! They form when hot magma or lava cools down and hardens, creating crystal patterns as it freezes.

Metamorphic rocks are the transformation artists of the rock world. They start as existing rocks but get completely changed when they're exposed to intense heat and pressure over thousands of years.

Sedimentary rocks form from layers of sediments that get squashed together over time. Each type tells a different story about how and where it formed.

Memory Tip Igneous = fire (from magma), Metamorphic = change (transformed), Sedimentary = layers (built up over time)!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru
KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru
KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru
KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru
KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

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

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

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

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. 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 app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

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

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

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

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. 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 app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

 

Geography

136

Nov 26, 2025

8 pages

Understanding Earth's Layers

user profile picture

ruth

@j.up1t_3r

Understanding how our planet is built and how rocks form is like learning Earth's secret recipe! This geology guide breaks down everything from the layers beneath your feet to the three main types of rocks you'll encounter everywhere.

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Earth's Structure - The Basics

Think of Earth like a giant layered cake - each layer has its own special properties and job. The inner core sits right at the centre, extending about halfway from Earth's heart to the surface where we live.

Above that lies the mantle, which is basically a massive layer of hot, liquid rock called magma. This is where things get pretty exciting - all that molten rock is constantly moving around beneath us!

The crust is the thin, rocky shell we actually live on. It's made up of huge puzzle pieces called tectonic plates that slowly drift about on top of all that moving magma below.

Quick Fact: The crust is incredibly thin compared to Earth's other layers - imagine the skin on an apple, and you've got the right idea!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Rock Formation and Key Processes

Rocks don't just sit there doing nothing - they're constantly changing through some fascinating processes. Erosion gradually breaks down rocks over time, wearing them away bit by bit through wind, water, and weather.

Once rock particles get moved around, deposition takes over. This is simply when all those worn-away bits settle down in new places, like sand collecting at the bottom of a river.

The minerals in rocks are basically the chemical ingredients that make each rock type unique. Some rocks are more durable than others, meaning they're much harder to damage or break apart.

Remember This: Erosion breaks rocks down, deposition moves the pieces around - it's like nature's own recycling system!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

The Three Rock Types You Need to Know

There are three main rock families, and each forms in a completely different way. Igneous rocks are the cool kids - literally! They form when hot magma or lava cools down and hardens, creating crystal patterns as it freezes.

Metamorphic rocks are the transformation artists of the rock world. They start as existing rocks but get completely changed when they're exposed to intense heat and pressure over thousands of years.

Sedimentary rocks form from layers of sediments that get squashed together over time. Each type tells a different story about how and where it formed.

Memory Tip: Igneous = fire (from magma), Metamorphic = change (transformed), Sedimentary = layers (built up over time)!

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

KEYWORD
DEFINITION
Inner Core
The innermost later of the Earth, which
extends about halfway from the centre of
the Earth to the surface.
Cru

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

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

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

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

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. 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 app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

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

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

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

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. 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 app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user