7th Grade Science Guide

7.2: Changes to Earth 3 Dimensions & Progressions

Unit 3

STANDARD 7.2.3 ● 7.2.3 Ask questions to identify constraints of specifc geologic hazards and evaluate competing design solutions for maintaining the stability of human-engineered structures, such as homes, roads, and bridges. Examples of geologic hazards could include earthquakes, landslides, or foods. (MS-ETS1-1)

CONCEPTS

SKILLS

● Geologic hazards (foods, earthquakes, volcanoes, landslides) ● Human engineered structures (homes, bridges, roads, etc.)

● Ask questions ● Design solutions

LEARNING PROGRESSIONS

● Mapping the history of natural hazards in a region can help us understand potential future hazards. ● Small changes in one part of a system might cause large changes in another part ● Stability might be disturbed either by sudden events of gradual changes that accumulate over time ● Systematic processes can evaluate solutions with respect to how well they meet criteria and constraints of a problem

VOCABULARY

● Constraints ● Criteria ● Prototype ● Iteration

● Geologic Hazard ● Mitigation ● Stability

● Human-Engineered

POSSIBLE PHENOMENA ● Eight houses in Norway were swept out to sea with little warning. ● Several houses have slid down a hillside in North Salt Lake.

● The town of Thistle, UT has disappeared. ● In 1983, State Street in SLC was a river.

● Many brick buildings do not survive strong earthquakes. ● A huge rockfall covered the road in Zion National Park.

END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I can review several different types of building strategies and identify their strengths and weaknesses for different types of hazards. ○ Language Supports: ■ A variety of words to suggest time (in the past, in the future) ■ Connectors to link clauses (as a result of, therefore, to be more precise, instead of,