Here are the answers to your worksheet.
1. Are these objects minerals or rocks?
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a) granite: Rock (It is made of different crystals mixed together).
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b) pyrite: Mineral (Also known as "Fool's Gold," it has a specific chemical makeup).
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c) jade: Mineral (A gemstone with a specific composition).
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d) limestone: Rock (Made mostly of the mineral calcite, often from sea creatures).
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e) azurite: Mineral (A deep blue copper mineral).
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f) marble: Rock (Metamorphic rock formed from limestone).
2. Classify the rocks as sedimentary, igneous or metamorphic
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a) marble: Metamorphic (Changed by heat and pressure).
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b) pumice: Igneous (Volcanic rock that cools quickly with air bubbles).
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c) basalt: Igneous (Dark volcanic rock).
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d) limestone: Sedimentary (Formed from layers of sediment).
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e) quartzite: Metamorphic (Sandstone that has been changed by heat).
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f) slate: Metamorphic (Changed from shale).
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g) sandstone: Sedimentary (Made of cemented sand grains).
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h) granite: Igneous (Forms slowly underground).
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i) shale: Sedimentary (Hardened mud/clay).
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j) gneiss: Metamorphic (Has distinct bands or stripes).
3. Write one use of each of these rocks
*(Note: There are many correct answers for this section. Here are common examples)*
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a) chalk: Writing on blackboards / Making marks on pavement.
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b) granite: Kitchen countertops / Statues / Building steps.
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c) slate: Roof tiles / Blackboards / Flooring.
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d) marble: Sculptures / Flooring / Bathroom sinks.
Final Answer:
1. a) Rock, b) Mineral, c) Mineral, d) Rock, e) Mineral, f) Rock
2. a) Metamorphic, b) Igneous, c) Igneous, d) Sedimentary, e) Metamorphic, f) Metamorphic, g) Sedimentary, h) Igneous, i) Sedimentary, j) Metamorphic
3. a) Writing on boards, b) Countertops, c) Roofing, d) Sculptures
Parent Tip: Review the logic above to help your child master the concept of rocks and minerals worksheet.
