2 Bell WorkIf John has 100 meters of string and Aliyah has 10 dekameters of string, whose has the longest piece of string?Ms. Eubanks travels 10 kilometers each day to work. How far does she travel in centimeters?
3 Objectives: Practice Writing Lab Reports Expectations/Notebook Set-up Conversion Review
4 Lab Report Must Include all elements outlined in the lab format. Turned in on timeConclusion must contain all elements
5 Lab Report Format I. Title of Experiment VI. Procedure ·Step by step II. Experimental QuestionThe purpose of the experiment in the form of a question. III. Hypothesis IV. Introductionparagraph discussion outlining the important concepts in the experiment V. MaterialsA list of ALL of the materials used in the experimentVI. Procedure·Step by step VII. Data & ObservationsVIII. Results/Calculations IX. Conclusionbegin with purpose of the labstate hypothesisbriefly discuss the procedure thendiscuss ALL of your data and results for the experimentfinally conclude with whether you proved/disproved hypothesis why or why not
6 Lab Report Hydrogen Balloons How is Hydrogen produced? Hypothesis: Hydrogen is formed from a metal and hydrochloric acid reacting together.The purpose of the experiment is to observe, take data, and write a lab report concerning the production of hydrogen gas.Materials:
7 Materials: Zinc, HCl, beaker, test tube, balloon, weigh boat, lighter, stick, safety glasses, gloves, and string.Procedure:1. Put on Safety Equipment2. Obtained Materials3. Put zinc in test tube4. Put HCl in test tube5. Put Balloon on Test Tube6. Collected Gas and tied balloon with string.7. Caused the collected gas to combust.
8 CLASS WORKWrite the first five steps of your lab report in your notebookData TableObservationsZincHydrochloricBeforeAfter
9 VIII Results and Calculations: The experiment produced hydrogen gas from a chemical reaction. There were several things that indicated a chemical change: change in temperature, color change, formation of a precipitate, and production of a gas.
10 Class Work Write Your Conclusion in your notebook If you are not finished in class, complete for homework