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Candlestick Treasure

Lesson Plan, Science 3

Properties of Metals

 

Objectives

  • Learn about the physical and chemical properties of metals and non-metals.
  • Observe the physical and chemical properties of metals and non-metals.
  • Classify an element as a metal, non-metal, or metalloid based on its physical and chemical properties.
  • Learn how to test the conductivity of a substance.

 

Lesson Overview

This lesson plan should take about two class periods.  Begin by showing the Science 3 PowerPoint presentation.  This presentation introduces the basic chemical and physical properties of metals.  The Properties of Metals Handout summarizes these properties and may be discussed following the presentation.  In addition, a discussion of lab safety should follow the presentation in order to prepare students for the activity.  The second class period should begin with the Properties of Metals Activity.  In this activity, students will investigate the physical and chemical properties of metals and non-metals through a series of lab exercises.  Students will use the Properties of Metals Handout and to guide them through the activity and the Properties of Metals Worksheet to record their observations and draw conclusions from their findings.  

 

Handouts

  • Properties of Metals Handout
  • Properties of Metals Worksheet

                                

Activity

Summary:

In this activity, students will perform a variety of lab experiments to explore some of the physical and chemical properties of different elements.  Students will also determine which tested elements are metals, which are non-metals, and which are metalloids based on the results of their experiments. 

 

Materials:

  • labeled vials with caps filled with the following (seven per group)

        iron fillings

        sulfur rolls

        mossy zinc

        graphite (replacement lead for mechanical pencils works well)

        silicon

        mossy tin

        carbon (charcoal)

  • one dropper bottle (per group)
  • 6M hydrochloric acid
  • one hammer (per group)
  • 8 note cards (3.5 x 5) (per group)
  • a conductivity apparatus (9-volt battery, small appliance light bulb, and 3 pieces of insulated copper wire see background and concepts below)
  • one test tube holder (per group)
  • seven test tubes (per group)
  • safety goggles (one per student)

 

 

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