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Students can use Geodes to plan and conduct an investigation to describe and classify different kinds of materials by their observable properties.
Students can make observations of geodes and use information from media to construct an evidence-based account that Earth events can occur quickly or slowly.
Students can use geodes to make observations and measurements to identify materials based on their properties.
Students can make observations of geodes as part of an investigation to develop a model to describe the cycling of Earth's materials and the flow of energy that drives this process.
Students can make observations of geodes of the past and current movements of continental and oceanic crust and the theory of plate tectonics to explain the ages of crustal rocks.
Students can smash the Geodes to reveal the inner crystal or rocky structures. A great opportunity to describe and classify different kinds of materials by their observable properties.
Students can make observations of geodes to look for crystals. If there are well-formed, large crystals, the rock shows evidence of a slow process. If it is filled with ash, it shows evidence of faster cooling.
Students can make observations of geodes as part of a study of Earth's geologic history.
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