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Tuesday, February 3, 2015 Math Journal Prompt: All the 5th graders at Ella’s school are going on a field trip to Bush Gardens. There are 180 people going on the trip. Each bus holds 40 people. How many buses are needed? Explain why your answer makes sense. Don’t Forget, restate the question with your answer and justify it. 8:10 – 8:40 Restroom Break 8:40 – 8:50 Language Arts Benchmark Test When finished: Extra time to work on your Magazine Project 8:50 – 10:20 SCIENCE TIME 10:20 – 10:55 Do you remember what rock we learned about last time? Igneous- large intergrown crystals, glassy texture, porous (vesicular) How is an igneous rock formed? Melted rock or magma can come out of a … V o l c a n o http://studyjams.scholastic.com/studyjams/jams/science/rocksminerals-landforms/volcanoes.htm http://studyjams.scholastic.com/studyjams/jams/s cience/rocks-minerals-landforms/earthquakes.htm Our Second Rock Study! sedimentary rock Sedimentary- visible particles or sediments, layers, and fossils (typically feels grainy) Review Science Binder Page Sedimentary Rocks Rocks made of bits & pieces of other rocks. http://studyjams.scholastic.com/studyjams/jams/science/ro cks-minerals-landforms/sedimentary-rocks.htm Sedimentary Rocks • Igneous rocks are the most common rocks on Earth, but because most of them exist below the surface you might not have seen too many of them. • 75 percent of the rocks exposed at the surface are sedimentary rocks. What is sediment? • Sediments are loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity. • Sediments come from already-existing rocks that are weathered and eroded. • Sedimentary rock forms when sediments are pressed and cemented together, or when minerals form from solutions. Sedimentary Rocks Sedimentary rocks may be made of rock fragments—sediments—or by chemical reactions. The classification of sediments is shown below. Clastic rocks–made of cemented sediments—are classified by their grain sizes. Non-clastic rocks form by chemical precipitation (settling out from a solution.) Limestone is made from calcite, chert from quartz, and halite is rock salt. Biologic sedimentary rocks come from the remains of organic matter. • The most important of these is coal. Anthracite coal results from the greatest pressure and releases the most energy when burned. Other varieties are bituminous and lignite. “Petrified” (permineralized) wood is another organic rock. More about sedimentary rocks • Shale is the most common sedimentary rock • Sedimentary rocks cover about threequarters of the land surface • For more about sedimentary rocks: Types of Sedimentary Rocks Sandstone Limestone Gypsum Conglomerate Shale http://studyjams.scholastic.com/studyjams/jam s/science/rocks-minerals-landforms/fossils.htm Radiometric dating provides an accurate way to estimate the age of fossils. • Relative dating estimates the time during which an organism lived. – It compares the placement of fossils in layers of rock. – Scientists infer the order in which species existed. Hands On Activity! Sedimentary Sandwich! Vocabulary Activity – Imagine That! Close your eyes and imagine: As the bulldozer dug up your back yard, you happened to notice an interesting rock. It appeared to have an outline of a squid. Think-Pair-Share: • What type of rock could it be and why? • What could you infer about what your backyard looked like a million years ago? What is the scientific theory that the Earth’s crust is broken up in to plates that move or float? Plate Tectonics What is the crust and upper mantle called? lithosphere What is the rock that is made from melted rock (called magma) that has cooled and hardened? igneous What’s a solid nonliving substance found inside of rock? mineral What is the rock that is made from small pieces (called sediment) that have pressed and cemented together called? sedimentary What’s the hottest and hardest layer at the center of the Earth called? inner core MOVE TO LEARN http://www.movetolearnms.org/how-do-ido-it/fitness-videos-4-6/cranium-corral/ 10:55 – 11:00 Math Time! 11:00 – 12:00 Workbook pages 663-664 Workbook pages 665-666 Homework wkbk pages 667-668 Even numbers Out of Classroom! • 12:00 – 12:45 Activity • 12:45 – 1:15 Lunch • 1:15 – 1:45 Recess Writing Time! Expository Nonfiction W52 – write informative/explanatory texts 1:45 – 2:40 Reader’s Theater Sequencing Text Structure In-Class Magazine Project Today – Write article using sequence & order text structure Station Rotation B! 2:40 – 3:10 3:10 – 3:15 Wrap Up! • Pack-Up • Office will announce: Car Riders – Leave around 3:15 Bus Riders – Teacher walks out about 3:22 (listen to intercom-dismisses by grade)