8th Grade Science Guide

8.2: Physics 3 Dimensions & Progressions

Unit 1

● Sound is all around us.

● Full lesson plan ● Ping-pong ball, String, Tape, Paper clip, Tuning Fork, Rubber bands in various sizes, Marker, Shoebox or tissue box

● I can create a model of a mechanical wave that explains how they are refected, absorbed and transmitted through various materials referencing models in the explanation.

Everything we hear in our day-to-day lives has a distinctive sound, from the jingling of keys to the tapping of footsteps in a hallway. Sound is created when objects vibrate. These vibrations cause the air around them to vibrate, sending sound waves in various directions. Some objects known as their resonant frequency. In this activity, students will explore the vibrating nature of sound and how it travels from molecule to molecule. Students will experiment with how sound waves or compare and contrast the speed of sound through different media. Students also will investigate the resonant frequency of different rubber bands, and how that frequency is affected by various factors. tend to vibrate at a specifc rate. This is vibrations can be observed, and will

Formative Assessment: SEEd Formative Assessment 8.2.5

8.2.5 Phenomena: Disappearing Trick

Objective

Overview

Materials

● I can write a CER.

● The structure of a wave affects its ability to be refected, absorbed, or transmitted through mediums. Have students perform one of the

● Light’s behavior through water Video ● Disappearing coin trick ● Disappearing glass trick ● CER Resources