1. Igneous Rocks by Ann C. Cloutier Earth & Space Scienceacloutier copyright 2011 2. Igneous rocksare formed from the crystallization of magma. can form on or near…

Slide 1Silica – it’s more than just dust! Alaska Occupational Safety & Health (AKOSH) Slide 2 Purpose of this training Overall the purpose of this training is to…

Slide 1 Slide 2 Rocks Rocks! What makes up Earth’s Crust Slide 3 Three types of rocks… Igneous Metamorphic Sedimentary Slide 4 What is a rock? What is a rock? A rock…

Slide 1 Silica – It’s Not Just Dust The following topics are covered: What is silica? What are its health hazards? What are the human exposure limits? Where is it used…

Slide 1 10.3 TYPES OF VOLCANOES 1. Plate tectonics accounts for important features of Earth’s surface and major geologic events. As a basis for understanding this concept:…

Slide 1 Igneous Rock Slide 2 Igneous means “born of fire”. Slide 3 Formed when magma or lava cools and hardens through the process of crystallization Crystallization…

Silica Awareness The purpose of this presentation is to inform you to the serious health hazards of silica dust. Silica exposure can occur during sandblasting, grinding or…

10.1 What is a Volcano? 10.3 Types of Volcanoes Plate tectonics accounts for important features of Earthâs surface and major geologic events. As a basis for understanding…