STEAM with Dad

Hey guys today I am going to tell you about plate tectonics and volcanoes. The idea to learn more about this came because at school we covered the topic of natural disasters. The most important thing you need to know about tectonic plates is how they move; the magma that is in contact with the core heats up causing it to be less dense and rise and then it cools down and goes back down. Think of it like a conveyor belt. This phenomenon is called convection. Now let's move on to volcanoes. A volcano is essentially an opening, or vent, in the Earth's crust through which magma, seeps out to the surface which makes a mountain as the magma solidifies. The type of volcano I will talk about today is called a subdutcion volcano which is basically when one plate slips under another turning into magma causing pressure to acumulate and magma to seep through the cracks. But happens when the magma can just seep throughthe cracks well then pressure builds up and up and up until it all blows u...