1. Igneous rocks: Some definitionsMolten rock in the Earth is magma Magma is buoyant, rises to surface, & sometimes breaks through when magma reaches Earth’s surface…

Slide 1A PRESENTATION BY CHLOE THORPE Slide 2 CHARACTERISTICS OF ROCKS COLOR TEXTURE HARDNESS WEIGHT Slide 3 The Three types of rocks Slide 4 Igneous rocks are called fire…

Slide 1Igneous Rock Lab Slide 2 Goals of the lab 1.Observe the different textures of igneous rocks. 2.Observe the differences in colors of igneous rocks. 3.Based upon your…

1. KULIAH 2The Earth's Internal StructureFaculty of Agro Industry and Natural Resources 2. Internal structureHow do we obtain information about the parts of earth beneath…

Slide 1Plate Tectonic Model Did you read chapter 30 before coming to class? A.Yes B.No Slide 2 So how do you move a continent? Slide 3 Slide 4 What drives plate motion? …

Slide 1Hardness Mohs Hardness Scale 1. Talc 2. Gypsum 2.5finger nail 3.5penny 3. Calcite 4. Fluorite 5. Apatite 5.0 nail 5.0-6.0 glass and knife blade Slide 2 6. Orthoclase…

Slide 1 Igneous Rocks Slide 2 Slide 3 Igneous rocks form when magma cools and hardens. Photo used with permission from Mike Jarvis, Naperville Central HS, Naperville, IL…

Slide 1 18.2 - Eruptions Slide 2 Making Magma  Activity depends on ____________ of magma  Lava can be thin & __________ or ___________ & lumpy Slide 3 Magma…

Slide 1 Slide 2 Slide 3 Slide 4  Intrusive Rocks  Below earth’s surface – cools slow  Large grains  Extrusive Rocks  On earth’s surface – cools fast…

Slide 1 1 Chapter 18- Volcanic Activity Slide 2 2 I. Magma A. How magma forms 1. All volcanoes are fueled by magma deep beneath Earth ’ s surface. 2. Magma forms when temperatures…