premise: if something causes something else then that something else is a result of that something sent2: sedimentary rock is a kind of rock sent3: extreme heat and pressure compact sediments into sedimentary rocks sent4: sedimentary rocks are formed by sediment compacting together sent5: formation in the rock cycle means an old class of rocks changes into a new class of rocks sent6: to compact means to squeeze together.
hypothesis: the formation of a new rock is a result of pressure squeezing sediments together