8th Grade Science Guide

8.1: Chemistry 3 Dimensions & Progressions

Unit 2

● Students watch the video clip, or watch a demonstration of

● Lesson Plan ● Reaction in a Bag Video

● I can make observations and inferences about a phenomena.

the Reaction in a Bag. Students should make

observations and draw a before and after picture. Students should also write about what changes they saw

happening during the video/demonstration.

Activity: Chemical Reactions

Objective

Overview

Materials

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

● Students watch a video

● Video

about a chemical reaction. Have the student identify how they know a reaction occurred. Students will take notes on reactants, products, exothermic, endothermic, and signs of a chemical change. Have students write down 2-3 ways that a chemical change is different from a physical change.

Activity: Chemical/Physical Changes Lab

Objective

Overview

Materials

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

● Students rotate to different stations to view chemical reactions. Students will follow instructions at each station and compare chemical and physical properties before and after the reaction.

● Student Graphic Organizer

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

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