Carefully review all of the Unit 3 readings and then complete the following:Using information from the podcast, “Narrowing Your Focus for Research,” choose a health topic of interest to you. Some examples might include obesity, diabetes, heart disease, cancer, etc.Using information from the podcast, “Academic Sources,” go to the Library and complete a peer-reviewed source search for your topic. Locate a minimum of three peer-reviewed sources on your topic.Using information from the Writing Center document, “Writing an Annotated Bibliography,” compose an annotated bibliography for your chosen sources with at least 5–6 sentences for each annotation. The annotations should include a summary of the chosen peer-reviewed article, a discussion of how you know the source and research is credible, and how it can be used to support your research. Your summary should provide the reader with a clear understanding of what the study adds to the body of literature on the topic. Your annotation should be original, composed by you, and follow all of the formatting guidelines for an annotated bibliography.Requirements:Your submission is composed in a Microsoft Word document.To meet the objective requirements, your response is at least 500 words in length.Your submission includes specific examples of concepts, topics, definitions, and other elements to demonstrate mastery of the objective.Your submission includes a highly developed viewpoint and purpose.Your response is in Standard English and demonstrates superior organization.Your communication is highly ordered, logical and unified, as well as original and insightful.Your submission displays exceptional content, organization, style, and mechanics.A separate page at the end of your response contains a list of references.Include both in-text and reference list citations where appropriate and reference all sources used following proper APA citation style.Please review the APA formatting and citation style in Academic Writer which is found through Academic Tools.

The ancient Egyptians most likely used simple machines to build the pyramids. Discuss how you might use one or more of the simple machines to move the massive stone blocks up the growing pyramid, and into their proper places. (Hint: Space aliens are not part of the answer!) How else could you use simple machines?

In this Unit, you learned about acids and bases. You will complete the activities below to demonstrate your understanding.First, procure the materials from the list below. These should be relatively easy to find at your local pharmacy or drugstore.Then, study the objectives and consider the essential questions to prepare yourself to begin.Follow the procedure closely. Take notes of your observations and questions as you move through the experiment.At the conclusion of your experiment, answer the Analysis questions. Be thorough as you respond to these important questions - your overall Analysis Portion should be three to four pages in length (750-1000 words). Remember that this is the cumulative project for the course, and should demonstrate everything you have learned.pH Scaling: Acids and Bases Lab ActivityObjectives: Students will be able to:Compare and contrast the hydrogen ion concentration for various acid and base solutionsDetermine what happens when vinegar and baking soda are mixedUse pH indicators to determine the acidity of a solutionTest various substances to determine if they are acidic or basicPart I: Essential QuestionsWhat is the pH scale?How are acids and bases measured by a pH indicator?How are acids and bases different?What types of substances are considered acids and bases?Materials:Copies of Acid/base lab sheetspH litmus paper (pH testing strips)Variety of solutions (lemon juice, vinegar, water, tea, milk, soap, baking soda)Goggles (Safety Precautions) **Students must wear goggles!Do not taste or directly inhale any of the solutionsProcedure:Choose 5 different substances to test.Hypothesize whether each substance is an acid or a base. Record on the table below.Put each substance in a test well. If it is a liquid, test the liquid directly. If it is a solid, it needs to be mixed with water so the pH can be determined.Dip a pH strip into each of the 5 substances and allow it to sit for 10-20 seconds. Using the pH scale on the pH strip container, measure the pH level and record it on the chart.Part II: Data Table: Measurement of pHName of SubstanceHypothesis (is it an acid or a base?)pH LevelAcid, base or neutral?Part III: Analysis questions:Part III: Analysis questions:What does the pH scale indicate?What is an acid? Where are they found on the pH scale? What is a base? Where are they found on the pH scale?Were any substances tested neutral? Why or why not? Explain your answer.Were any of your results surprising? Why or why not?Write five facts you learned about acids and bases.everything must be completed what you see is what needs to get done asap!all activities must be done for my satisfaction thanks,