Have you ever wondered what lies beneath our feet? Have you ever thought about digging all the way to the other side of the Earth? Well, we’ve got some fascinating information for you about layers of the earth.
To start off our lesson, we conducted a ‘Think, Pair, Share Activity’ with the following question written on the board: “”Do you think it is possible to dig your way through the ground to the other side of the Earth? Explain why or why not?”” Students were asked to think independently for 1 minute and write down their ideas. They then discussed and shared their responses with their partners and as a whole class.
It turns out that it is not possible to dig through to the other side of the Earth you will find layers of the earth. After about five miles down, you would experience such intense heat that you would burn up. The innermost layer of the Earth is so hot that it is not possible to cross it. This is why nobody has ever been able to dig that far.
But don’t worry, we don’t have to dig our way to the other side of the world. We can get there by plane or boat! As we delve into the Earth, we will find that it is made up of different layers, just like an onion. The layers get ‘denser’ the closer we move to the center of the Earth.
There are four main layers of the Earth: The crust, the mantle, the outer core, and the inner core. We live on the Earth’s crust, which is the outermost layer and is made up of solid rocks. The crust floats on the mantle, which is the next layer. The mantle is also made up of solid rock, but it is in constant motion and flowing very slowly. It is made up of a high composition of minerals and iron.
As we move closer to the center of the Earth, we have the outer and the inner core. The outer core of the Earth is liquid and mostly made up of iron and nickel. The temperature of the outer core is extremely high, and it gets even higher as we move towards the inner core. The inner core of the Earth is solid and almost as hot as the Sun.
In conclusion, the Earth is a fascinating planet with multiple layers that protect and sustain life on its surface. We hope this lesson has sparked your interest in exploring the structure of our planet. Don’t forget to draw and label the structure of the Earth in your notebooks!
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