7th Grade Science Guide

7.3: Structures & Function of Life 3 Dimensions & Progressions

Unit 4

STANDARD ● 7.3.1 Plan and carry out an investigation that provides evidence that the basic structures of living things are cells . Emphasize that cells can form single-celled or multicellular organisms, and that multicellular organisms are made of different types of cells. (MS-LS1-1)

CONCEPTS

SKILLS

● Structure of living things ● Cells ● Single-celled or multicellular organisms

● Plan investigation ● Investigate ● Provide Evidence

LEARNING PROGRESSIONS

● All living things are made of cells ● Cells are the smallest unit that can be said to be alive ● Cells are too small to be seen by the eye ● Microscopes help us to see cells ● There are single-celled organisms, or organisms made up of many cells ● There are different types of cells

VOCABULARY ● Cell

● Protist ● Algae ● Magnify ● Microscope

● Nucleus ● Cell wall ● Cell membrane ● chloroplast

● Structure ● Multicellular ● Unicellular ● Organisms ● Bacteria

POSSIBLE PHENOMENA ● When viewed under a microscope a pinecone and a penny have very different microscopic structures. ● A sample of pond water has individual, moving organisms when viewed under a microscope. ● White blood cells can chase and consume/kill bacteria. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ● I candoan investigation to provide evidence that all living things are made of cells. ○ Language Supports: ■ Nouns to support skills (i.e. document, draw, details, sketch)

■ Word to describe observations (rough, smooth, compared to, smaller than, larger than, etc.) ■ Labeling and graphics (lines, arrows, labels, etc.)