Activities Write I (igneous), M (metamorphic) or (S) sedimentary. ) It constitutes the majority of our planet's crust. ) We can find fossils in this type of rock. ) It is the least common type of rock. ) It depends on an extreme event to be changed. ) It goes from liquid form to solid form. 2.Read the text and answer the questions below. A-What are some of the events that might lead to the formation of metamorphic rocks? _________________ b. Where are sedimentary rocks usually found? ________________ C.What are the two triggers of the rock cycle? a Pictionc _________________[ 03. Use the words below to explain how each type of rock is formed. a.Igneous: magma / cool / solidify b. Metamorphic: event / change / pre-existing / rock c. Sedimentary: sand / shells / other materials / layers / solidify