Crust

Crust is the outer layer of the Earth, or the part we live on. It is also the rock that makes a valcano.


Source
https://commons.wikimedia.org/wiki/File:NASA_54558main_world_med1.gif

Lava

Lava is the material that erupts from a volcano. It contains ash and cinders as well.


Source
https://www.google.com/imgres?imgurl=https%3A%2F%2Fc1.staticflickr.com%2F3%2F2266%2F2412549444_d84651aa7b_b.jpg&imgrefurl=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fkarlbert%2F2412549444&docid=yzPC73Wkox7eZM&tbnid=kyvwMtGC_9hMQM%3A&vet=10ahUK

Magma

Hot, liquified rock deep below the Earth's surface.


Source
https://c1.staticflickr.com/8/7021/6775469461_c520516901_b.jpg