Igneous rocks 2011acloutier copyright
Silica – it’s more than just dust! Alaska Occupational Safety & Health (AKOSH)
Rocks Rocks! What makes up Earth’s Crust Three types of rocks… Igneous Metamorphic Sedimentary.
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.
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,
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.
Igneous Rock. Igneous means “born of fire”. Formed when magma or lava cools and hardens through the process of crystallization Crystallization = the.
10.3 Types of Volcanoes
