Charles Law Online Lab http://bit.ly/1bYW4k

Evaluation/Assessment: Objective: Today I will be able to: Explain how Boyle’s Law impacts SCUBA Divers Analyze the relationship between volume and temperature of gases in Charles Law by constructing a graph Correctly solve Charles’s Law Problems Evaluation/Assessment: Informal Assessment – Monitoring student interactions as they complete the online lab Formal Assessment – analyzing student responses to the exit ticket and the online lab Common Core Connection Use technology and digital media strategically and capably Make sense of problem and persevere in solving them Look for and express regularity in repeated reasoning

Lesson Sequence Evaluate: Warm – Up Engage and Explain: SCUBA Video Engage and Explore: Charles Law Online Lab Explain: Charles Law Notes Elaborate: Charles Law Practice Evaluate: Exit Ticket

Warm - Up What is Boyle’s Law? Why does pressure increase as volume is decreased?

Objective Today I will be able to: Explain how Boyle’s Law impacts SCUBA Divers Analyze the relationship between pressure and volume of gases in Charles Law by constructing a graph Correctly solve Charles Law Problems

Homework Finish Charles Law Online Lab Finish Charles Law Practice

Agenda Warm – Up SCUBA Video Charles Law Online Lab Charles Law Notes Charles Law Practice Exit Ticket

Boyle’s Law/ SCUBA Video SCUBA – self contained underwater breathing apparatus Watch video clip Write or diagram an explanation of why SCUBA divers need to understand Boyle’s Law

Charles Law Online Lab Visit the link to view the simulation for Charles Law. Enter the data in the data table. Make a graph and answer the questions.

Charles Law Notes

What does temperature measure? The average kinetic energy of the molecules If temperature is increased what happens to the speed of the molecules? Increases If temperature is decreased, what happens to the speed of the molecules? Decreases

Charles Law Analyzes the relationship of volume and temperature Pressure is held constant

Charles’s Law If the temperature of a gas increases, the volume of a gas increases This shows a direct relationship between V and T Temperature must be in Kelvin (Celsius + 273) V1 = V2 T1 T2

Charles’s Law

Charles’s Law _16.0_ _V2_ 273 = 308 V2 = 18.1 L Example: 16.0 L of oxygen gas occupies a gas cylinder at 0.00ºC. What will be the volume of the gas if the temperature is increased to 35.0ºC? (Hint: Celsius  Kelvin) _16.0_ 273 _V2_ 308 = V2 = 18.1 L

Charles Law Practice Complete the practice at your desk. Whatever is not finished will be your homework.

Exit Ticket What is happening to the molecules of a gas when temperature is increased ?