Group One Elements

By Jessica Behymer •

Grade Level	11th
Subject Area	Chemistry
Duration	One 70 minute class period
Background Knowledge	Students need to be introduced to the periodic table and the types of bonding that can occur between elements.
Author	Jessica Behymer

Summary
Students watched a demonstration where elemental Lithium, Sodium, and Potassium were added to water. They made predictions before the demonstration and made observations during the demonstration. A group discussion followed the demonstration to explain what happened: where did the group I metals go and what was being produced and why. Trends were discussed and conclusions drawn about other group I elements.

Objectives
1. To make and revise hypothesis 2. To develop observation skills 3. To make conclusive trends about Group I elements 4. To recognize why Group I elements do not naturally occur in their elemental state 5. To develop discussion skills

Ohio Standards
Science *Physical Sciences* 1. Describe real world examples showing that all energy transformations tend toward disorganized states *Scientific Inquiry* 1. Formulate testable hypotheses. Develop and explain the appropriate procedures, controls and variables (dependent and independent) in scientific experimentation. 2. Evaluate assumptions that have been used in reaching scientific conclusions. 3. Design and carry out scientific inquiry (investigation), communicate and critique results through peer review 4. Explain why the methods of an investigation are based on the questions being asked. 5. Summarize data and construct a reasonable argument based on those data and other known information Mathematics None Technology None