This has happened on the eastern edge of the state, near what is now the Sierra Nevada. Where are most igneous rocks found? Why do we find them there? Igneous rocks formed where volcanoes and magma pushed through the Earth’s crust and caused rocks to melt and reform. They may not know that the Central Valley used to be a large lake. For example, ocean waves break down rocks. Where are most sedimentary rocks found? Why do we find them there? Sedimentary rocks are found where water is currently located or was located in the past. Using both maps, and drawing on their new knowledge of the geologic processes, discuss the following:. Key words rock cycles how to#Modeling how to read the colored key, challenge students to determine the type of rock most prevalent under your city. Remind students of today’s essential question as you pass out the colorful Rock Types of California map.Returning to the maps of California, discuss the following: What landforms, waterways, plant communities, and faults do you see? How might these affect the changing surface of the Earth?.Labeling of the relative duration of each event (e.g., "instantaneous" to "millions of years" or "fastest" to "slowest").Clear written descriptions of the processes.At least 3 transformations listing the type of rock at beginning and end.Their collection of cards can serve as a reference, but writing should be in their own words. In their science notebooks, have students reflect on what happened to their own rock throughout the game using drawings and words.Ask students: Which of these processes continue to this day? Are any processes on those cards happening as we speak?.Examples: sedimentation of layers, cementation of particles, uplift of mountain ranges. Examples: weathering of rock by wind, tree roots cracking rock, erosion of a boulder down to sand at the river’s delta, subduction of tectonic plates.Įxtremely slow. Examples: earthquakes, landslides, volcanic eruptions, striking meteorites, cooling lava. Challenge students to find and share a process on a card that is….You are buried under sediment on the ocean floor (sedimentation), pushed under a continent (subduction), melted, and eventually forced back up to harden in cold water. As you get ground into tiny pieces, you become cemented to other rock particles (cementation). Approximately 10 minutesĪ glacier slowly flows over you, crushing and dragging you (erosion). You are melted from the impact of a flaming meteorite and flung through the air where you cool and harden. For example, which of the below is most likely to have taken 10 minutes? What about 10,000 years? 100 million years? Discuss geologic time with your class by comparing the relative speed at which rocks transformed in sample scenarios from the game.Instead, emphasize that some processes are fast and others are slow, and all drive the rock cycle. Teacher Tip: Do not worry about exact durations. They can create a timeline or comic strip of what happened. Teacher Tip: If one group finishes before the others, instruct students to review the sequence of events listed on the cards in their possession. The game will continue until all of the 24 cards have been used, or until the teacher deems appropriate. Once this round is complete, the next student will take a turn as the clue reader.Regardless of whether any person guesses correctly, the player will move their game piece to that correct rock type.If no one guessed correctly, then the reader keeps the card and gains a point.
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