Dynamic Earth; Inner Earth

Welcome to the third sequence post that teaches you more about are dynamic Earth. I hope you enjoy and learn as much from this one as you have in the ones before!

• Layers
• The Earth has many layers which are very hot
• The main ones are the crust, mantle, and the steaming core
• The core is said to be hotter than the surface of the sun
• During the first 100 million years of Earth's life, some solar system particles collided making something very hot
• At first, Earth accreted, and then melted completely
• Layers began to form and take over
• Dense molten iron sank and created the core
• A liquid a little bit lighter cooled and formed the mantle
• Much later, while the mantle was melting, it formed the hard crust, and the process is still going on today
• Crust

• Crust is otherwise known as Earth's thin skin
• Like the skin of an apple, the crust is very thin
• The outer layer is composed mostly of two types of rocks - Basalt and granite
• Basalt is a volcanic rock
• Mantle
• About 84% of Earth's volume is mantle rock
• The uppermost 100 km of mantle is rigid
• The lower mantle is extremely dense
• Most of the mantle flows like a glacier, very slow and heavy
• Core
• About 15% of the Earth's volume is core
• The core is about the size of Mars
• The outer core is so hot that it flows as well as liquid
• The inner core has so much pressure that it is solid iron

The Earth has always been amazing to me, but since Mrs.M showed us this website, I have been asking myself questions, trying to figure out what's happening under our feet! this particular post has taught me the most about the layers inside our Earth - the inner Earth. I've always loved science and learning about our Earth, but this website is so in-depth, interesting, has variety, is...is...amazing!!!