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Geologic Time Scale: 10 cm, calendar, clock

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How old is Earth? How big is 1 million years compared to 1 billion years? Students will use three models to organize geologic time and practice cross multiplication to solve for a variable.

Lesson Grade Level

8th Grade

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Grades: 9th Grade, 10th Grade, 11th Grade, 12th Grade
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In this project, students will choose an environmental problem to research. They will look up why this problem is occurring and how it is harming the environment. Students will then come up with two