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Exploring Rock Types: Observing Igneous, Sedimentary, and Metamorphic Rocks

This project aims to observe a variety of igneous, sedimentary, and metamorphic rocks with a hypothesis yet to be determined. The independent variable, dependent variable, and constants will be outlined. Using a rock kit, hand lens, knife/spatula, and dilute HCl, methods include testing hardness, observing grain size and texture, and checking for reactions with HCl. Results will be recorded in a table including general appearance, color, hardness, grain size, texture, reaction with HCl, and classification.

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Exploring Rock Types: Observing Igneous, Sedimentary, and Metamorphic Rocks

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  1. Looking at rocks

  2. Aim: To observe a variety of igneous, sedimentary and metamorphic rocks • Hypothesis: • Independent variable: • Dependent variable: • Constant: • Materials: • Rock Kit • Hand Lens • Knife/spatula • Dilute HCl

  3. Method: • Test Hardness with a table knife/spatula • Use hand lens to observe grain size & texture • Use a small drop of HCl to see if bubbles are produced – follow teacher’s instructions • Results • Create a table to record: • General appearance • Colour • Hardness • Grain Size • Texture • Reaction with HCl • Classification

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