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how are crystals made

Crystals. MESA SpecificationsWhat are crystals?What materials can be used?What is the process for making crystals?What else is needed to be a winner?Experiment

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how are crystals made

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    1. How are Crystals Made? By David Braunstein MESA Schools Program Academic Coordinator

    2. Crystals MESA Specifications What are crystals? What materials can be used? What is the process for making crystals? What else is needed to be a winner? Experiment—MAKING IT CLEAR!

    3. MESA Specifications Material to be used is Potassium Alum. AlK(SO4)2 . 12 H2O Also called Aluminum Potassium Sulfate Dodecahydrate. Crystal need to be large, clear, well-shaped, and beautiful. SOLUTION needs to be CLEAN. You need to WRITE what you do IN a LOGBOOK.

    4. MESA Specifications (con’t) Growing time determined by the students. Display includes graph Crystal size (VOLUME) vs. TIME Take photos of Crystal growth during cycle. Size may be determined by Measurement Displacement Weighing and dividing by density (1.76 g/cm3) Write the data of the procedures and growth rate in the logbook.

    5. What are Crystals? A solid formed by the solidification of a chemical and having a highly regular atomic structure (Sodium Chloride is an example of crystals e.g. Table Salt.)

    6. Atomic Structure

    7. Chlorine Structure

    8. Sodium Structure

    9. Sodium and Chlorine Ions

    10. Sodium Chloride

    11. Sodium Chloride

    12. What is this?

    13. Diamond Structure

    14. GRAPHITE

    15. BUCKY BALLS

    16. ALUM CRYSTAL

    17. Crystal Concepts Basic concepts Solvent- That which does the dissolving. (water) Solute- That which gets dissolved (sugar) Solution- Mixture of Solvent and Solute. Solubility-amount of a solute that can be dissolved in a solvent. The amount of sugar that can be dissolved in water.

    18. GRAPH The graph demonstrates how various solutes have variable solubility according to the temperature of the solvent.

    19. Flow Diagram for Growing Crystals

    20. ALUM CRYSTAL

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