8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

Activity: History of the Law of Conservation of Mass

Objective

Overview

Materials

● I can develop a model describing atoms and molecules ability to

● Students will watch this video that shows the history related to conservation of mass.

● Video

combine and recombine. (conservation of matter)

Include a discussion of the impact on science from a qualitative to quantitative focus.

Formative Assessment: 8.1.6 SEEd formative assessment

8.1.6 Phenomena Assessment

Objective

Overview

Materials

● I can provide evidence and describe how chemical reactions regroup atoms into different molecules with new chemical and physical properties. ● I can develop a model describing atoms and molecules ability to

● Have students describe their observations. They will then use a word bank to summarize what is happening at the molecular level and explain why the mass did not change. They must explain the balanced

● Teacher Instructions ● CER

chemical reaction using a diagram with the particles labeled.

combine and recombine. (conservation of matter)

8.1.4 Phenomena: Nylon

Objective

Overview

Materials

● Students will be shown a reaction of the formation of Nylon (either a demo or a video) as an inquiry phenomenon. ● Show students the reactants (1,6 Hexanediamine and

● I can make observations about a phenomena and inferences about what I think is happening.

● Video instruction for

teachers to learn about the chemistry behind the experiment

● Video of demo for students

Sebacoyl Chloride) and have students observe