Igneous Rocks — Test Answers

An igneous rock floats because air bubbles became trapped when molten material erupted from an underground volcano. How else can this rock be accurately described?

Which phrase describes non-foliated rocks?

An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?

A geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. The geologist pries at the rock, and it splits apart along the bands formed by the layers.Which type of rock did the geologist most likely find?

Which rock is an example of a clastic sedimentary rock?

Which rock is an example of a chemical sedimentary rock?

Which phrase describes how metamorphic rocks form?

Which correctly lists the three agents that must be present for cementation to occur?

Which statement best describes the formation of metamorphic rocks?

Which process begins the formation of sedimentary rock?

Which characteristic is best for identifying whether a rock is intrusive or extrusive?

Which type of rock has a coarse texture due to slow cooling in magma chambers?

Which type of rock forms when molten material cools and hardens inside Earth?

As streams flow through Stone Mountain, layers of sand build up. Over time, the sand particles form a sedimentary rock called sandstone.What causes sandstone to change into metamorphic rock at Stone Mountain?

This image shows a model of the rock cycle.

Which phrase describes an extrusive rock?

Which two materials form igneous rocks upon cooling?

Which two parts of sedimentary rock formation include the breakdown and carrying away of existing rock?

The image shows an example of a sedimentary rock.

Which process moves small rock pieces during sedimentary rock formation?