Biology The Living Environment

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Biology The Living Environment

• Mr. Mac

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What is Biology/Life Science?
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What is Biology/Life Science?

• The study of all living things
• Ex. You, your pet rat, a tree, a mushroom
• Living things both large and small

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Scientists Study Biology Through.

• Observation
• Critical thinking
• Experimentation
• Evaluation
• Analysis
• Patience

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Scientific Method

• Steps to problem solving
• Universal

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Steps to Scientific Method

• Identifying the problem
• Observation/ gather informatin
• Hypothesis
• Experimentation
• Analysis
• Conclusion

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• Observation
• Vs
• Inference

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• Observation
• Vs.
• Inference

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• Observation
• Vs.
• Inference

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Step 1 Identify the Problem

• Observe something interesting, and wonderHmmm
• Define the problem
• Determine what you are researching

Images from http//www.inmagine.com/searchterms/th
inking-4.html
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Step 2 Gather Information
                           

• Gain as much information as possible
• Through observations
• senses
• 1. sight
• 2. sound
• 3. taste
• 4. touch
• 5. Smell

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Step 3 Hypothesis

• An educated guess about the problem, or better,
  a TESTABLE explanation.
• Always written as an ifthen statement
• Ex.

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Step 4 Design an Experiment

• To test the hypothesis
• Examine all factors that could change in the
  experiment

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Factors to consider during an Experiment Include

• independent variable the thing in the
  experiment that causes the change
• dependent variable - the thing in the experiment
  that changes
• Control the thing that remains unchanged or is
  considered the normal part in the experiment

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Step 5 Record/Analyze data

• Create graphs, charts, and/or tables, that record
  information collected in the experiment
• Form an Inference type of conclusion based on
  the collected data

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Step 6 State a Conclusion

• A written statement that reflects the outcome of
  the data collected in the experiment
• States whether the data agrees (supports) or
  disagrees (refutes) with the HYPOTHESIS

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Does miracle grow really make plants grow faster?
                                            
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DATA
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More ways to represent DATA
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Put the following steps of the scientific method
in the correct order

• a. Make a conclusion
• b. Pick your topic
• c.  Conduct your experiment
• d.  Make your hypothesis
• e. Analyze your data  
• f. Research your topic

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An experiment is being done to determine how
light affects the growth small zinnia plants. One
plant is placed in full sunlight, the second in a
shaded area, the third in an unlit closet. What
is the independent variable in the experiment?
A. Type of plant B. Amount of Sunlight C. Type
of Soil D. Length of Experiment