7th Grade Science Guide

7.5: Changes in Species 3 Dimensions & Progressions

Unit 6

STANDARD ● 7.5.2 Analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on Earth, under the assumption that natural laws operate today as in the past. (MS-LS4-1)

CONCEPTS

SKILLS

● Patterns in fossil record ● Diversity ● Extinction ● Change of life forms throughout history ● Natural Laws

● Analyze ● Interpret data ● patterns

LEARNING PROGRESSIONS

● Fossils are left behind in sedimentary rock ● Overtime those layers build up leaving a record of life through time ● The law of superposition states that the layers at the bottom are the oldest ● Fossils in those layers are the oldest fossils and can tell us about the history of life on Earth ● Index fossils are prevalent in the rock record of the Earth and can help us look for trends and patterns across a wide geographic distribution

VOCABULARY ● Patterns

● Geologic ● Organism ● Ancestor ● Species ● Strata layers

● Radioactive dating ● Extinction ● Sedimentary rock ● Law of Superposition ● Index Fossils

● Fossil record ● Diversity ● Extinction ● Natural laws

POSSIBLE PHENOMENA ● Fossils of seashells are found in the mountains of Utah. ● A 375 million year old fossilized fsh, Tiktaalik roseae , had a remarkable feature: it had fns that it used to walk on land. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I can analyze and interpret data about patterns found in the fossil record that document different life forms throughout Earth's history. ○ Language Supports ■ Connectors to link clauses (as a result of, therefore, to be more precise, instead of, however, on the other hand) ■ Word choice to moderate stance (could/might, a possibility, usually)