Bond Types

Goal:
Use electronegativity to predict whether atoms will form ionic or covalent (polar or nonpolar) bonds.

Agenda
ACT Practice
Notes
Practice
Journal

ACT Practice
You have 10 minutes to answer the ACT practice questions. After we will debrief and discuss challenges and strategies.

Notes
Create a new journal entry entitled "Bond Types." Answer the questions:

• Why do atoms bond?
• Define the following bonds and explain when they occur. 
• Ionic Bond
• Polar Covalent Bond
• Nonpolar Covalent Bond

Practice

Make a copy of this worksheet and complete in class. 

Journal

In your journal, answer the following questions:

1. Identify the metallic character of magnesium and chlorine.
2. Calculate the electronegativity difference between magnesium and chlorine. 
3. Write a CER explaining whether you think MgCl2 is ionic, nonpolar covalent, or polar covalent. Use the answers to questions 1 and 2 as evidence. 

Salts vs. Molecules

Goal:
Contrast salts and molecules in terms of bond type, description of electrons, metallic character of atoms, structure, behavior in water, and examples.

Agenda:
Warmup
Review
Graphic Organizer

Warmup
Create a new entry in your journal entitled "Salts vs. Molecules." Answer the following questions:

• Where are metals on the periodic table? Nonmetals?
• Electronegativity trends?
• Are metals or nonmetals more electronegative?

Review

Go to Kahoot

Graphic Organizer

1. In your science journal under your warmup create a table with 3 columns and 6 rows.
2. In columns 2 and 3, write the words "Salts" and "Molecules"
3. Carefully read today's learning objective and use this information to fill in the rows in column 1.
4. Use these slides and research as necessary to complete your graphic organizer.

Magnesium Meets Chlorine

Goals:
Take careful observations of a chemical reaction occurring.  
Model a chemical reaction showing the law of conservation of matter by using balanced equations and particle diagrams.

Agenda:
Warmup
Lab

Warmup
Create a new entry in your science journal entitled "Magnesium Meets Chlorine," then write down everything you know about magnesium and chlorine based on the periodic table.

Lab

1. Open this lab document.
2. Copy the Procedures, Data/Observations, and Analysis into your science journal under your warmup.
3. Carry out the lab procedures and complete the Data/Observations table.
4. Work with your tablemates to complete the analysis questions. You may want to use a whiteboard to draw models. 

All the Error

Goal:
Complete your lab report.

Agenda:
Kahoot
Outline
Write
Review

Kahoot
Go to Kahoot and get ready to review reliability and validity.

Outline
On whiteboards, list all of the evidence you have available for errors in your experiment. 

• Examples: not enough trials, high %RSD, visual observations of your setup
• Nonexamples: human error, calculation error, measuring wrong

Write

Finish your report by writing your PE paragraph. It should be in the form of a CERER. Be sure to include AT LEAST two sources of error.

Review

Using the rubric on your table, give yourself a score on your completed lab report. Write your score and reasoning on the provided paper. 

Write CER

Goal:
Write a CER based on your lab data. 

Agenda:
Warmup
Outline
Write
Revise

Warmup
Go to Socrative and answer the question: What factors might affect the rate of cellular respiration?

Outline
Work with your elbow partner to outline your claim, evidence, and reasoning. When we make our claim we want to GENERALIZE what the data says about cellular respiration and use REASONING that is connected to scientific concepts. 

Write
Write you CER silently.

Revise
Trade your lab report with your partner. Partner please highlight the following:

• Claim - Red
• Evidence - Green
• Reasoning - Yellow

Discuss 1 strength and 1 weakness of the CER you read with your partner. 

Revise your CER based on commentary.