8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

● salt, water, pan/container, heat source, student sheet ● salt/water evaporation video ● Electrolysis Set Up Video ● Water, plastic container, thumb tacks, 9V batteries, test tubes, baking soda, student sheet ● Student worksheet for evaporation and electrolysis phenomenon

● I can explain how atoms recombine to form a

● Evaporation and Electrolysis: Have

compound. I can explain the basic make up of an atom and how atoms make up matter.

students revisit notes/ observations taken during phenomenon and re-answer the questions from the phenomenon sheet. They should now be able to explain how the atoms of sodium and chlorine recombine to form a compound in the evaporation and that water is 2 parts hydrogen and 1 part oxygen. Students can use the following diagram to explain the basic makeup of an atom and how atoms make up all matter. ● Fire extinguishers come in many different types. Students are shown a fre extinguisher code chart. They are to discuss with a team the following questions: Why does it matter what materials you use to put out a fre? Why are the types of materials used to put out a fre important?

● Electrolysis of Water Explained ● Electrolysis Home Science

8.1.2 Phenomena: Fire Extinguisher

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.

● Fire extinguisher code chart

Activity: History of M&Ms Reading

Objective

Overview

Materials

● I can use valid resources to obtain information about properties of

● Students will do a reading activity about the history of M&M candies. They will

● History of M&Ms ● Student article and

guided reading sheet