KAAE

toc

Rock Chart

 * **Rock Number** || **Properties** || **Prediction- rock or mineral?** || **Why?** ||
 * 1 || Cloudy white, semi-rough, shiny luster || Mineral || it's glassy and shiny ||
 * 2 || Shiny, rough, orangish-brown || Mineral || it's shiny and cloudy ||
 * 3 || Thin, like seaweed, greasy || Mineral || it's shiny and greasy ||
 * 4 || Dull, gray, rough || Rock || it's dull and rough ||
 * 5 || Black and Brown || Rock || it has different crystals ||
 * 6 || Bright luster, black || Mineral || it's smooth ||
 * 7 || Light white || Rock || it's not shiny ||
 * 8 || Rough, multi-colors || Rock || it's gravelly ||
 * 9 || Shells, rough, hard || Rock || it's shell and rough ||
 * 10 || Smooth, powdery || Rock || it's dull ||
 * 11 || Sandy || Rock || it's sandy ||
 * 12 || Rough, dull || Rock || it's dull ||
 * 13 || Glittery || Rock || it's rough ||
 * 14 || Cloudy white || Mineral || it's white ||
 * 15 || Sparkly || Rock || it's white ||
 * 16 || Dull, light || Rock || it's dull ||

Salt Experiment

 * I Purpose**:To tell the difference bettween rcks and minerals using their crystal structure.
 * II Hypothesis**: The water will dry up and then it will grow salt crystals.
 * III Materials**: The materials include a paper plate, spoons, hot water, and most importantly table salt.
 * IV Procedure**: Fill a small cup with 2/3 teaspoon of salt. Fill the cup with water intill it is about 1/2 full(for best results use the miniture cups).Then, stir the water intill the salt has completely mixed in. Once the salt is all gone pour the water into the spoons. Leave the spoons(taped)on the paper plates to dry up.
 * V Data;Observations**: The salt crystal were all shaped like cubes. So it appears that the crystal system of salt is rather small cube crystals. It also seems that if the salt solution is closer to the start temperature it is bigger.The reason I believe so is because a table accidentally poured out the heated solution and later replaced it with colder water, plus their crystals were the biggest.
 * VI C,E,R**: Salt crystals did form as I predicted. My wording which wasn't perfect said"The water will dry up and then it will grow salt crystals," which was incorect. The salt crystals grew while the water was drying up. That I figured out was because I check the solution one day after and water was still there but the crystals had already started to form.