ROCKS AND MINERALS
Rocks- made up of two or more kinds of minerals
Minerals- made up of only one kind of mineral
"Rock Solid" article by Katherine Sorel: http://asulearn.appstate.edu/pluginfile.php/201277/mod_assign/intro/readings/Rock_Solid.pdf
Rocks- made up of two or more kinds of minerals
Minerals- made up of only one kind of mineral
"Rock Solid" article by Katherine Sorel: http://asulearn.appstate.edu/pluginfile.php/201277/mod_assign/intro/readings/Rock_Solid.pdf
![Picture](/uploads/2/3/0/3/23036350/3040285.jpg)
Igneous rocks are formed from cooled magma.
Melting Sugar Activity
Melting Sugar Activity
- Melted sugar poured on greased cookie sheet- cooled quickly, glassy (like obsidian)
- Milk was added- cooled more slowly, lumpy and crystalline (like granite)
- Backing soda was added- caused air bubbles (like pumice)
![Picture](/uploads/2/3/0/3/23036350/1622660.jpg)
Sedimentary rocks are layered.
Dry Food Activity
Dry Food Activity
- Give students a variety of dry foods to represent soil, broken shells and pebbles
- Have them layer the foods in a tilted, glass jar
![Picture](/uploads/2/3/0/3/23036350/7786773.jpg)
Metamorphic rocks are rocks that have changed form by heat or pressure.