Presentation on theme: "September 17, 2009 Objectives:"— Presentation transcript:
1 September 17, 2009 Objectives: HP: SWBAT calculate density from experimental values.All: SWBAT calculate volume.All: SWBAT accurately and precisely measure mass, volume, an length.
2 Thursday September 16, 2009 4-MINUTE Warm Up Convert the following:a) cm = ? mb) 12.0 cm = ? mmc) 1.0 g = ? kgCalculate the volume if the mass of water is 15.0g and the density is 1.00g/cc.(cc is short for centimeter cubed or cm^3)
3 Metric Conversion Factors What you must know:1km = 1000m 1m = 100cm1kg = 1000g 1g = 100cg1kl = L 1L= 100cL1m = 1000mm 1cm = 10 mm1g = 1000mg 1cg = 10 mg1L = mL 1cL= 10 mL
4 You Try In your classwork section: What conversion factor would you use to convert mm to meter?Convert 12.0mm to meters.Convert 1 km to cm. (A+)
5 Lab Notebook Heading (top right corner of first page of EVERY lab) ex. Your Name: John DoeMr. NgDatePdTitle: (Every lab should have a title)
6 Pre Lab (Due on day of lab) Pre-lab: Written before the lab. Includes a Title, Purpose, Hypothesis Procedure, Data Table and Observation Charts (shell), Analysis Questions*You write out these out. If there are no Data Tables, you must draw them.
7 Lab Notebook Order Purpose/Hypothesis Materials Procedure Data & CalculationsAnalysisConclusion QuestionsSources of Error*the more specific and thorough you are for each, thebetter the grade.
8 Procedures If not given to you: ex. Procedures: 1. Obtain two different pieces of tin foil labeled A and B.2. …* Be specific so that you may follow your procedures literally and specifically.
9 Data TablesAlways label your data tables so that you may refer to them in your analysis or conclusion.Ex. In table 1.1, we see that the temperature increased from 11.2°C to 15.0°C.Make sure all units are labeled in ALL tables.
10 Sample Data Table Sample A Sample B Density (g/cc) 2.7g/cc Mass (g) ….
11 Finishing Up Calculation: Complete any calculations and show work with units.Conclusion:Was your hypothesis correct? Did you successfully complete your purpose? Why or why not (explain)Use numerical data to support your hypothesis.
12 Homework Length Lab due in Folder HP: Density Lab due Tuesday (in Notebook)All: Chapter 2 Outline due MondayResponse due Sunday NightQuiz