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# 21st Century Skills ## Collaboration and Communication ### Let Us Discuss Conduct a survey/interview with residents in your neighbourhood to gather information about how the land use patterns have changed over time. Analyse the responses and prepare a comparative study outlining the reasons for...

# 21st Century Skills ## Collaboration and Communication ### Let Us Discuss Conduct a survey/interview with residents in your neighbourhood to gather information about how the land use patterns have changed over time. Analyse the responses and prepare a comparative study outlining the reasons for these changes. Present your findings to the class for discussion. # Name of the Parent Rocks | Rock | Type | |---|---| | Limestone | Sedimentary | | Sandstone | Sedimentary | | Granite | Igneous | | Coal | Sedimentary | | Shale | Sedimentary | | Slate | Metamorphic | # Name of the Metamorphic Rocks | Rock | Parent Rock | |---|---| | Marble | Limestone | | Quartzite | Sandstone | | Gneiss | Granite | | Graphite | Coal | | Slate | Shale | | Phyllite | Slate | ## Quick-thinking Give two examples of each of the following: * Mechanically formed rocks * Chemically formed rocks * Organically formed rocks ## Rock Cycle The rock cycle is a continuous geological process that involves the formation, alteration, and recycling of the three major rock types, namely, igneous, sedimentary, and metamorphic rocks based on different applications of heat and pressure over time. It starts with liquid magma that solidifies into rocks, which then changes to become a different type of rock, or depending on the heat and pressure, transform into molten magma again. Volcanism and cooling can turn magma into igneous rocks, while weathering and erosion can break them down into sediment that eventually accumulates and compresses into sedimentary rock. * **Word Galaxy** * **Geologic process:** a process that changes the shape and form of the Earth over time * **Volcanism:** eruption of a volcano