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The Crystal-Needle Experiment

The Crystal-Needle Experiment. Demonstrated by Maren Ervin 2009. The experiment demonstrates how crystals are formed from salt. I used tap water and Epsom salt to demonstrate my experiment. . Evaporation causes salt to form into crystals .

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The Crystal-Needle Experiment

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  1. The Crystal-Needle Experiment Demonstrated by Maren Ervin 2009

  2. The experiment demonstrates how crystals are formed from salt. I used tap water and Epsom salt to demonstrate my experiment.

  3. Evaporation causes salt to form into crystals • Water evaporates and the salt is still there. This is evaporation.

  4. Me mixing the water and Epsom salt

  5. Pouring into the jar lid

  6. The Crystal-Needles Grew! I got a jar lid and black construction paper. I cut the paper into a circle the size of the lid and put it into the lid. I poured about 1 cup of water into a measuring cup and mixed Epsom salt into it. I poured the water mixture into the jar lid and then left it there for about 2 days. As you can see in the picture, the crystal-needles formed.

  7. Minerals we get from crystals • AMETHYST, the purple variety of quartz A partial list of minerals we get from crystals: Purple amethyst Calcite Copper Silver Quarts Fluorite

  8. Crystal PalaceMexico, estimated to be between 30,000-600,000 years old

  9. My Display Board

  10. Sources of Information • http://www.galleries.com/minerals/property/associat.htm • http://www.inlandlapidary.com/user_area/identifying.asp • http://ngm.nationalgeographic.com/2008/11/crystal-giants/shea-text/2 • http://www.cosmosmagazine.com/node/1159 • http://www.tpwd.state.tx.us/publications/nonpwdpubs/young_naturalist/earth_sciences/crystals/index.phtml • 200 Gooey, Slippery, Slimy, Weird & Fun Experiments by Janice VanCleave

  11. Acknowledgments • Thanks to Darcy Ervin, Wendy Ervin, Onyea Sholty, and Dalton Ervin for helping.

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