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Scientific Method. Unit: Science in Action 9/10/12. Objective: SWBAT describe and utilize the scientific method to conduct an investigation. IA: What is the name of each tool below? What do we use each tool to measure? What is the name of the units they measure in?.
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Unit: Science in Action 9/10/12 Objective: SWBAT describe and utilize the scientific method to conduct an investigation. IA: What is the name of each tool below? What do we use each tool to measure? What is the name of the units they measure in?
Steps in the Scientific Method • Question • Observation • Hypothesis • Experiment • Data Collection • Conclusion • Retest
Identifying the Problem • Something is happening and I am curious to discover why or how it is occurring. • Problems are specific and testable • What does it mean to be testable?
Observations • Gathered through your senses • A scientist notices something in their natural world • What is an observation you can make about the class today?
Hypothesis • A suggested solution to the problem. • Must be testable • Sometimes written as If…Then… statements • Predicts an outcome
Hypothesis • An example of a hypothesis might be that the salamanders have curved tails due to a pollutant in the moist soil where they live.
Experiment • A procedure to test the hypothesis.
Experiment Variable – factor in the experiment that is being tested
Experiment A good or “valid” experiment will only have ONE variable!
Scientific Experiments Follow Rules • An experimenter changes one factor andobserves or measureswhat happens.
Data • Results of the experiment • May be quantitative (numbers) or qualitative (description)
If I was conducting an experiment about how many miles my car gets for each gallon of gas, what type of data would I be collecting? Why? Pair with your neighbor and come up with an answer
Data • Must be organized • Can be organized into charts, tables, or graphs
Conclusion • The the data obtained from the experiment to support or disprove a hypothesis
Solving a Problem 1)Identify a Problem 2) State Observations about the problem 3) Form a Hypothesis about the problem (if…then…) 4) Design an Experiment to test the hypothesis 5) Collect Data 6) Form a Conclusion 7) Retest
Why should we retest an experiment? • With the person sitting next to you come up with 3 reasons why.
For tomorrows investigation…… • Read the problem and the procedure with your group. • Determine what materials you think you will need. • Come up with an hypothesis and fill it in the graphic organizer.
Summary • Share out hypothesis • Anticipate any problems
Unit 1: Science in Action 9/11/12 Objective: SWBAT conduct an investigation that displays the scientific method. Initial Activity: Read over the lab specifically the question and procedure. Write your hypothesis using the “If...,then..” format. - If you are done, read over the back page which describes “How to create a graph?”
Lab Protocol • Elect one person from your group to be the materials manager. Have them come and collect the materials. • We will all start the data collection at the same time. Complete the lab protocol and be sure to record your results accurately. • When you are done, return your materials to the front of the room.
Lab Partners-2nd Period • Eyad & Paul • Nikita & Marcel • Adam & Angel • Destiny & Brianna • Christoper & Jonathan • Sabrina & Marisa • Xavier & Andrew • Solounge & Anthony • Brittany & Cheyenne • Sasha & Tatiana • Jose & Regina • Destiny & Nicoletta • Assibi & Caleb
Lab Partners-3rd Period • Kevin & Awais • Ricki & Kelventh • Merica & Arianne • Giselle, Mel and Anthony • Ashley & Christine • Anastasios & Brahian • Davidson and Taraya • Alex & Tania • Dylan, Dajuan and Erabakan • Josephine & Tiffany • Kyle, Dejohn and David
Closing • Complete the post-lab evaluation questions and graph • Compare your data with another group. How does your results compare? • Process Journal • What happened during the experiment? Did what I expect to happen actually occur? What was enjoyable about the lab? What was challenging?
