Rocks And Minerals Lesson 2 Observing Rocks How Are They The Same And Different

Rocks And Mineralsвђ Lesson 2 Observing Rocks How Are They Homerocks and minerals– lesson 2: observing rocks how are they the same and different?. "quick tips: resources for teachers” is a series of short videos providing down to earth advice and instructional tips to teachers of stc™, our signature sci.

Rocks And Mineralsвђ Lesson 2 Observing Rocks How Are They Suggested citation:"observing rocks: how are they the same and different?." national research council. 1994. rocks and minerals: teacher's guide. washington, dc: the national academies press. doi: 10.17226 21037. Teaching and learning focus it is important that your students begin to understand that rocks are made of minerals. different rocks have different characteristics because of their minerals, the ways in which the rocks were formed, and the processes that acted on the rocks since they were formed. in this first investigation, your students will use their senses to investigate some of the. Give it some thought: different igneous rocks of the same mineral composition extrusive and intrusive rocks containing similar minerals can be categorized by their composition of dark and light colored silicates, and a difference in texture may distinguish them as different rock types. coarse grained textures are evidence that minerals cooled. Relative age. a rock's age as its age is compared to the age of other rocks. law of superposition. according to what law, horizontal sedimentary rock layers the oldest layer is at the bottom. each higher layer is younger than the layers below it. lava. magma that reaches the earth's surface. extrusion.