8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

● Baking soda, vinegar, milk, chocolate syrup, corn starch, iodine solution, calcium carbonate (sidewalk

and compare chemical and physical properties before and after the reaction.

chemical reaction took place.

chalk), vinegar, matches, sand, water, Cheesecloth, beakers, eye dropper,

Activity: Precipitate Forming

Objective

Overview

Materials

● I can identify patterns in data to determine if a chemical reaction took place.

● Lesson Plan

● Students will combine two clear colorless solutions (baking soda solution and calcium chloride solution) and see the formation of a

solid and a gas to show evidence of a chemical change.

Activity: Light Forming

Objective

Overview

Materials

● I can identify patterns in data to determine if a chemical reaction took place.

● Teacher will perform

● Magnesium metal, bunsen burner, tongs ● Nitrate salts such as cupric, sodium, aluminum, strontium, calcium, lithium, etc. ● Heet or alcohol with

demonstrations of 1 or more reactions that produce light such as burning Magnesium metal strips, burning a hydrocarbon, or fame tests with metals (in Heet or alcohol). Students will observe the light and explain how it is evidence that a chemical change is occurring.

containers to perform the reactions in

Activity: Energy in Reactions

Objective

Overview

Materials