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Rocks and the Rock Cycle Poster Project Objectives Students will: • Describe the three types of rocks • Illustrate knowledge of the rock cycle • Explain how rock changes into new forms. Read through this power point and use the information to create a detailed poster of the rock cycle Three Types of Rocks • Rocks are classified by how they form – Igneous – Sedimentary – Metamorphic – Rocks can change from one type to another over time Schist Rock Classification • Rocks are classified by: – – – – How they form Texture Grain size Mineral composition Conglomerate Sedimentary Rock Igneous Rocks • Igneous rock: forms when molten rock (magma) cools and hardens • Classified by: – Where they form – Crystal (grain) size Basalt Intrusive Igneous Rock • Intrusive igneous: cooling takes place slowly beneath Earth’s surface granite Extrusive Igneous Rock • Extrusive igneous: cooling takes place rapidly on Earth’s surface Pumice Sedimentary Rock • Sedimentary rock: forms from the compaction and/or cementation of sediments • This process is called lithification • Sediments are: – Rock pieces – Mineral grains – Shell fragments Limestone How do sediments form? weathering • Sediments form through the processes of weathering and erosion of rocks exposed at Earth’s surface erosion Sedimentary Rock con’t…. • Sedimentary rock can also form from the chemical depositing of materials that were once dissolved in water • When water evaporates, minerals are left behind and form rock gypsum Metamorphic Rock • Metamorphic rock: forms when any rock type is changed into a different kind of rock • Changes due to great heat and/or pressure Gneiss How does rock change? • Rocks are heated, squeezed, folded, or chemically changed by contact with hot fluids marble The Rock Cycle The Earth Recycles Rock • The rock cycle is an ongoing series of processes inside Earth and on the surface • Slowly changes rocks from one kind to another • Any type of rock can change into another type Rocks/Rock Cycle Poster Your poster should include the following: 1. Name of each rock type 2. How each rock type forms 3. A brief description of each rock type 4. At least 2 examples of each rock type 5. Illustrate the rock cycle 6. Be neat, organized, creative, and colorful Rubric Content Excellent (5 pts) Excellent Poster includes useful and relevant information on all required components of the different rocks and the rock cycle. Information is wellorganized and accurate. Good Fair Poor (4 pts) (3/2 pts) (1 pts) Good Fair Poor Poster includes relevant Poster includes relevant Poster does not include information on most information on some of the relevant information or has components of the components of the few components the different rocks and the rock different rocks and the rock different rocks and the rock cycle. Information is cycle. Some information is cycle. Information is accurate. inaccurate and poorly poorly organized and organized. inaccurate. Work Quality & Effort Excellent The work done exceeds all expectations and shows that the student(s) is proud of their work. It is clear that best efforts were put forth. Good Fair The work was done with Work is done with fair good effort that shows effort, but the quality is what the student(s) is still not what the student(s) capable of accomplishing. is capable of. It is evident It is evident that time was that the work was rushed. put into this poster. Poor Work is done with little effort, which resulted in a low quality poster. It is evident that the work was rushed and little time was spent on the final poster. Work is incomplete. Excellent Good Fair Poster has an element of Poster is clear and contains Poster lacks clarity of creativity and style, and is few mistakes. Good information, creativity and not just a list of facts. creativity and neatness. neatness. Poster conveys a clear understanding of the topic. Poor Poster does not convey a clear understanding of the subject matter and there are many errors. Poster is not creative. Style & Creativity Time Management & Behavior Excellent Good Fair Poor The student(s) worked The student(s) worked well The student(s) did not The student(s) did not great managing time and on time management and work well on time work well on time did a stellar job with their did a nice job with their management, but did management and had poor behavior. behavior. alright with their behavior. behavior.