Simulation PHET Design Investigation Collect data Analyze data

• Simulation PHET • Design Investigation • Collect data • Analyze data • Create Poster to provide CER Bond Character and Molecular Polarity Lab

How does atom electronegativity affect bond character and molecular polarity? Purpose: explore the effect of atom electronegativity on bond character and molecular polarity. We will be using a Ph. ET simulation to explore these topics. • You will work in your table group to complete this lab. • The investigation will be presented as an argument poster that will be completed by your group. • Friday 11/30 we will “present” our poster for peer review.

• You will be using a computer simulation to explore the effect of atom electronegativity on bond character and molecular polarity. How does atom electronegativity affect bond character and molecular polarity? • With your table construct a hypothesis about the question. What knowledge do you currently have that leads you to this conclusion? • Investigate the simulation: • What type of data can/will you collect? • How do you plan on collecting it (procedure)? • How will you analyze your data (Graph/calculations)? • Create a data table for collection • Check in with Mrs. Foley • Collect your data

• Restate the question • State a claim • This is the answer your group has to the experimental question • Provide evidence that supports your claim • This is not raw data rather data that has been analyzed • Usually in graph form (don’t forget how I like graphs displayed!) • Justify how the evidence is important to supporting your claim • How does the evidence link to your claim? • What is the scientific reasoning behind your claim? • How does the evidence support your reasoning? Argument Presentation Poster

Read the background for the lab at your table (make sure this stays in the classroom!!!) With your table develop a hypothesis for the question: How does atom electronegativity affect bond character and molecular polarity? Your Task Make sure to describe the following scenarios: • Atoms with equal/almost equal electronegativity • One atom with a larger electronegativity • One atom with a much larger electronegativity What is happening to the electrons in each scenario?

Your Next Task • Within your table make groups of 2 -3 (not 4) • Get a computer • Investigate the simulation “Molecule Polarity” (Link on my website) • What data can you collect? • As a whole group: • What data will you collect? • How do you plan on collecting it? (Procedure) • How will you analyze the data? • Then check in with me • Data collection & analysis

Argument Poster • Claim • Does your hypothesis answer the question and is supported by the data? • If not you will need to rework your hypothesis so that it is supported by your collected data. • Ex: As the electronegativity difference between bonded atoms increases bond character does this and polarity does this. • Evidence • This is your graph, table, or diagram Justification • Support your claim using your high, mid, and low points: • When the difference in electronegativity between the atoms is highest the bond character is…the polarity is… • What is your reasoning behind each of these scenarios? • This is because the more electronegative atom is able to…

Poster Rubric 1 point 2 points 3 points 4 points Question is restated. Evidence (Part 1) Data Representation Evidence is presented for part but not all of the claim. All data has proper units. Example calculations are shown. Evidence is presented for all claims. All data is given with units. Example calculations are shown. Evidence (Part 2) Graph has plotted data & a scale. Graph has plotted data, a scale, and Graph has a title, appropriate axes, some titles. scale, trend line, & plotted data. Evidence (Part 2 -Alternate) Table with data & title or units Table with data & units. Table with data, units, & caption. Claim A claim is provided to answer the guiding question with limited accuracy. A claim is provided to partially answer the guiding question with accuracy. A claim is provided to answer the guiding question completely with limited some inaccuracies A claim is provided that accurately and completely answers the guiding question. Justification (Points x 2) One of the following is true: Claim is consistent with the evidence. Explains the importance of the evidence or inclusion to the scientific concept. Scientific terms are used correctly. Two of the following are true: Claim is consistent with the evidence. Explains the importance of the evidence or inclusion to the scientific concept. Scientific terms are used correctly. Claim is mostly consistent with the evidence. Explains the importance of the evidence or inclusion to the scientific concept. Scientific terms are used correctly. Claim is consistent with the evidence. Explains the importance of the evidence and inclusion to the scientific concept. Scientific terms are used correctly. Neatness Poster is neat (organized) and readable. Total /20

Poster Argument Session • • Pick up 5 sticky notes. Take a poster rubric with you. Check ALL boxes of the rubric. If they do not get 100% for a section leave them a note. Say something nice. Total up the points and give them a score. (out of 20) Sign your name. Repeat steps for 4 more posters (visit 5 posters total) Great job on your post er I like the fancy font for your title. I think tha t you could work on incorporating more scientific reasoning in to your justification. -Mrs. Foley 18/20