Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.
difference:
Different rocks have different characteristics because of their minerals, the ways in which the rocks were formed, and the processes that acted on the rocks since they were formed. ... They will then use their observations of the rocks to identify a particular rock from a collection.
commonalities:
Although there may be many differences between rocks and minerals, there are only a few similarities between them. Rocks as well as minerals are found in the Earth's crust (the outer layer of the Earth). Another similarity between the two is that rocks as well as minerals both have commercial value.
Explanation:
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