Which phrase describes an extrusive rock?
Which two materials form igneous rocks upon cooling?
Which property is used to identify the origin of an igneous rock?
How are rocks that cooled within magma chambers found on Earth’s surface today?
An igneous rock is found on the ground and has no identifiable crystals. What is the most likely origin of this rock?
How are extrusive rocks formed?
Which phrase describes a feature of igneous rocks that cool quickly during formation?
An igneous rock is light in color and has extremely coarse grains. What is the most likely origin of the rock?
An igneous rock has small, dark crystals. Which statement also accurately describes this rock?
An igneous rock has a large amount of feldspar. Feldspar can be used to classify the rock based on which characteristic?
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