8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

● I can use chemical and physical properties to identify unknown substances.

● Students will test a series of known powders and evaluate their chemical and physical properties. Then they will use this information to identify unknowns. ● You can use the Gizmo

● Student lab sheet ● Baking soda, cornstarch, sugar, salt, powdered sugar, baking powder, baby powder, four, etc. (all white substances) ● Iodine solution, vinegar, water, well plates ● Gizmo - Mystery Powder Simulation

simulation of this activity if you don’t have materials.

Activity: My favorite Substance

Objective

Overview

Materials

● I can use valid resources to obtain information about properties of matter and evaluate how the properties of matter are to be used for particular functions in society and communicate my fndings.

● Students need to research a substance of their choice and present it.

● My Favorite Substance

Activity: Separating Matter

Objective

Overview

Materials

● Students view 4 different prepared fasks and determine how they might separate the

● I can describe how to use physical properties to separate mixtures

Prepare 4 stoppered fasks for students to view. ● 1: Oil & Water ● 2: Salt Water ● 3: Sand and Iron Filings ● 4: Gummy bears & Jelly Beans

mixtures based on the physical properties of items in each container.

Student Worksheet

Formative Assessment: SEEd 8.1.2 Formative Assessment

8.1.2 Phenomena Assessment: Fire Extinguisher

Objective

Overview

Materials