How are extrusive rocks formed?
Which trait is common to rocks formed from magma trapped inside a volcano?
Which two features of igneous rocks are determined by their cooling rate?
Which two materials form igneous rocks upon cooling?
An igneous rock is found on the ground and has no identifiable crystals. What is the most likely origin of this rock?
Which phrase describes a feature of igneous rocks that cool quickly during formation?
How do intrusive rocks form?
Which mineral is commonly found in igneous rocks?
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?
Which type of rock forms when molten material cools and hardens inside Earth?
Which feature is used to classify a rock based on its composition?
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