CourageSCI 6 Name: Types of Rocks Classwork Date: Class Period: 6th Grade Science Part 1: Identifying Rock Types Directions: Read each description and underline or circle keywords that help determine if it is describing igneous, sedimentary, or metamorphic rock. Next, write down your answer in the first column. Igneous, Sedimentary, or Metamorphic Rock Description These rocks are formed when existing sedimentary rock or igneous rock are buried and exposed to intense heat and pressure. The rock is formed when magma or lava cools and solidifies into rock. This rock can either be formed above ground or underground. This rock type can be identified by a wavy pattern due to it being changed from intense heat and pressure over time. This rock is formed when sediments are deposited at the bottom of a lake. After millions of years of compaction and cementation this rock type is formed. The formation of this rock type first begins with weathering, erosion, and deposition of sediments into a body of water. This rock can be identified by large crystals if formed underground and small crystals if found above ground. This rock type contains fossils. This rock type used to be a different rock type before it was exposed to intense heat and pressure. You will most likely find this rock type near a volcano. This rock type can be identified by a wavy pattern. This rock type can be identified by many colorful layers. This rock type can be identified by the presence of crystals or air bubbles. Part 2: Matching Practice Directions: Read each statement and underline or circle keywords that help determine if it is describing igneous, sedimentary, or metamorphic rock. Next, draw a line to the rock type it describes. Each rock type has 2 matching statements. This rock is formed when existing sedimentary rock or igneous rock change due to intense heat and pressure. Igneous Rock This rock is a result of geological processes such as weathering, erosion, and deposition. This rock type can be identified a wavy pattern which is due to existing rock being changed into a new rock type. Sedimentary Rock This rock consists of crystals. The crystals are larger if the rock was formed underground and smaller if the rock was formed above ground. A rock formed when sediment is deposited in layers at the bottom of a body of water. The weight of more layers compacts and cements the layers of sediment into rock. Metamorphic Rock This rock type is associated with volcanic activity. Part 3: Vocabulary Practice Directions: Describe each rock type in your own words. Draw a picture and include one example of each rock type. Be sure to include key terms and characteristics of each rock type in your definition. Rock Type Sedimentary Rock Igneous Rock Metamorphic Rock Description Picture Example