TDMA

toc =Experiment 1=

Stories in Stone Salt Crystals
Materials: 2 cups (one full of salt, the other of water), spoon, tape, plastic plate, stick 1. Add water to the salt and stir with the stick 2. Tape the spoon to the plate. 3. Pour a little of the solution into the spoon from the cup. 4. Let out to evaporate. 5. When evaporated, examine. Notice the structure of the crystal. If it is square then the solutin was undisturbed.

Pictures
Salt crystals.

=Experiment 2=

Stories in Stone Rock Cycle

 * Type || Name || Observations ||
 * 1. Mineral || Quartz || Smooth, glassy, glittering luster ||
 * 2. Mineral || ? || Flat cleavage, smooth, glassy luster, ||
 * 3. Mineral || Mica || Flat cleavage, smooth, flakes easily ||
 * 4. Rock || Rhyolite || Tiny holes, smooth texture ||
 * 5. Rock || Granite || Rough texture, tiny crystals, mixture of minerals ||
 * 6. Rock || Obsidian || Smooth, glassy luster, black, hard, sharp ||
 * 7. Mineral || Pumice || Light, seems to be hollow, white/grayish streak, ||
 * 8. Rock || ? || Mixture of minerals, bumpy ||
 * 9. Rock || ? || Looks like oatmeal, bumpy, seems to be made of seashells ||
 * 10. Rock || ? || Sandy texture, dull tan color ||
 * 11.Rock || Sandstone || Sandy texture, rough ||
 * 12.Mineral || Kaolin || Rough texture, grayish color, white/grayish streak ||
 * 13.Rock || ? || Tiny crystals, no luster, dull ||
 * 14.Mineral || Marble || White crystals, clear, bumpy texture ||
 * 15. Rock || ? || Grey color ||
 * 16. Rock || ? || Smooth ||

Pictures


=Experiment 3=

Stories in Stone How do Igneous Rocks Form

 * Crystal Formation at Room Temperature**

1.Place a very small amount (less than 1/8 teaspoon ) of salol on a metal spoon.
 * Procedure**

2.Melt the salol by holding the spoon more than an inch (3cm)above the flame.

3.Remove the spoon from the flame.

4.Add a few grains of salol as "seed crystals."

5,Prop up the handle so the spoon stays level.

6.Look at the crystals with a magnifying lens,and draw what you see.


 * Crystal Formation at Low Temperature**

7. Remelt the crystals in one of the spoons.
 * __Procedure__**

8. Rest the bowl of the spoon on an ice cube.

9. Draw the shape of the crystals when the salol cooled at a low temperature. Use the magnifier to closely examine the crystals.

Pictures
...

Stories In Stone: How do Sedimentary Rocks Form
Materials: Tap Water, Sand, Clay, Silt, Cup, Stick 1. Pour the water into the cup. 2. Add the sand, silt, and clay to the water. 3. Mix with the stick.
 * Observation**s
 * Sand || Roughest textures. mixture of minerals ||
 * Silt || Finner than Sand, small ||
 * Clay || Fine texture, sticks to everything, powdery ||

Pictures
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