Types of rocks by Walker Wurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi en-us 2017-01-18 15:02:35 UTC 2024-11-07 10:21:21 UTC hello@padlet.com Sedimentary rocks walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147831205 formed from particles of sand shells etc. 
all of these particles are called sediment.
The sediment accumulates and then over a long period of time it hardens into rock.]]> 2017-01-18 15:06:25 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147831205 walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147838436 2017-01-18 15:26:28 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147838436 Metamorphic rocks walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147838788 The form under the surface of earth.
That is because of intense heat and pressure.
These rocks usually have ribbon like layers some have crystals in them.]]> 2017-01-18 15:27:21 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147838788 walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147840509 2017-01-18 15:31:50 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147840509 Igneous rocks walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147841005 These rocks form when magma cools and hardens.
There are no crystals in it but it is a shiny rock.
Sometimes gass bubbles get trapped in them.]]> 2017-01-18 15:33:10 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147841005 walkerwurdock https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147842090 2017-01-18 15:36:01 UTC https://padlet.com/walkerwurdock/kyfxmn2hexhi/wish/147842090