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Scientific Method

Intro to Life Science and the Scientific Method-Unit 1

QuestionAnswer
What is life science? The study of living things
Who are life scientists? -physicians, botanists, zoologists, microbiologists, science teachers, environmentalists
Where do life scientists work? -labs, farms, forests, ocean floors, space, hospitals, government agencies
Why do scientists study ways to combat disease? -they study the life of viruses and bacteria that cause disease to search for ways to fight them.
Why do scientists study Inherited Diseases? -they study genes and heredity to learn more about diseases, such as cystic fibrosis
Why do scientists study ways to protect the environment? -to help protect the world for us and for all other living things
What is the Scientific Method? -a series of steps that scientists use to answer a question or to solve a problem
What are the steps of the Scientific Method? 1)Ask a Question 2)Form a Hypothesis 3)Test the Hypothesis 4)Analyze the Results 5)Draw Conclusions 6)Communicate Results
Explain the Problem. -it is where you make observations and develop a question to be answered
What is an observation? -something that you can hear, see, smell, taste, or touch
What is an inference? -something that you think might be true based on the observations. It is not necessarily true since you do not have proof from your senses
What is the format for writing a question? -How does______ affect _____?
What is a Hypothesis? -a possible explanation or answer to a question -it must be testable
What is the format for writing a Hypothesis? -written in an IF/THEN format
What is done when testing a hypothesis? -after a hypothesis is made, scientists will design an experiment to test the hypothesis
What is a Controlled Experiment? -it tests only one factor at a time
What are Constants in an experiment? -all other factors in the experiment are the same
What is an Independent Variable? -the factor that is being tested
What do you ask yourself when identifying an Independent Variable (IV)? -"What am I changing?" -What is different among the experimental groups? -How does IV affect DV?
What is a Dependent Variable (DV)? -the factor that is the result
What do you ask yourself when identifying a Dependent Variable? -"What am I measuring?" -What are the results? -What will change because of the independent variable? -How does IV affect DV?
How do you determine the IV when reading the problem? -Circle the word AFFECT. -the Independent Variable is before the word affect
How do you determine the DV when reading the problem? -circle the word AFFECT -the Dependent Variable is after the word affect
How do you determine the IV when reading the hypothesis? -circle the word IF and circle the word THEN -The Independent Variable is after the word IF
How do you determine the DV when reading the hypothesis? -circle the word IF and circle the word THEN -The Dependent Variable is after the word THEN
What is a Control Group? -the subjects that are not being tested, but are being used as a comparison
What do you ask yourself when identifying a Control Group? -"Which group is being used as a comparison?" -Which group is not receiving the treatment? -Which group is receiving the normal treatment?"
What is an Experimental Group? -the group(s) of subjects that are being tested.
What do you ask yourself when identifying an Experimental Group? -Which groups are receiving the different treatments and what are those treatments? (other than the control group)
Explain Data Collection. -from your experiment, data can be collected and organized. The more data that is collected, the more accurate the results will be
How do you Analyze the Results? -put the data into data tables and line graphs. From these tables and graphs, patterns and trends can be observed
How do you Draw Conclusions? -decide whether the results from the experiment support the hypothesis. If it does not, a new hypothesis should be made and tested
How do you Communicate Results? -share results with other scientists using lab reports, journal articles, or oral presentations. The information can help scientists discover new questions and answers
What do you ask yourself when identifying/writing a Problem? -What am I trying to find out?
What do you ask yourself when trying to identify/write a Hypothesis? -What do I think the correct results are?(If/Then)
What do you ask yourself when identifying Constants? -What are the factors that must STAY THE SAME throughout the entire experiment? (at least 2)
Created by: carlsond