this week scientific method. (much). –pick up worksheet (no sticker? you are missing vital info....
TRANSCRIPT
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THIS WEEK• Scientific Method. (Much).
– Pick up worksheet (no sticker? You are missing vital info. Sticker = awesome).
How can I help?– Also, Characteristics of Life.– Pretest, Scientific Method– Variables!– Deer Game, graphing– Lab Safety—microscopes—CELLS!– TEST, Chapter One, Thursday/Friday– Pass out Books.
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How do we learn?• Terri Schiavo.
• Line
• How do we write?
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Answer one
• When considering the sanctity of life, one must first consider the morals, values, and principals that should govern us as a people. For a scientist, however, there is a unifying school of thought as to what constitutes a living entity. To be considered alive—not sentient, not intelligent, but merely existing—ones must posses eight critical characteristics.. You must have cells, that is the smallest living unit an individual may possess. You must also have either deoxyribonucleic acid, respond to their
environment (i.e., living creatures must have a tangible reaction to outside forces and stimuli). Other criteria includes a…
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Answer Two• Living things must have 8 things:• 1. Made of cells
2. Adapt/Respond to environment3. Internal Balance4. Based on genetic code- DNA or RNA5. Evolution- all organisms evolve over time6. Consume energy7. All organisms reproduce8. All organisms grow and develop
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NOTES• 1. Made of cells2. Adapt/Respond to environment3. Internal Balance4. Based on genetic code- DNA or RNA5. Evolution- all organisms evolve over time6. Consume energy7. All organisms reproduce8. All organisms grow and develop
•
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• Made of cells
• http://www.youtube.com/watch?v=pvOz4V699gk&feature=fvwrel
• http://www.youtube.com/watch?v=a4aZE5FQ284&feature=fvwrel
• Critical vocabulary when
describing cells?
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• Adapt and respond to environment• http://www.youtube.com/watch?
v=lMGXfL3UUSU
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Homeostasis • http://www.youtube.com/watch?
v=Aa2qve75L9Y
• 39 seconds—1:32
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AIDS
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Evolution• Partner
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• 6. Why is Ms. Ringl super jealous of teenage boys (and Michael Phelps).
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• http://www.youtube.com/watch?v=4JIytOL-Q18
• “a” as a prefix means….?
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• http://www.youtube.com/watch?v=_2MFFzldkYQ&feature=related
• 3:30—4:30
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• Review?
• Eight groups.
• How do we learn?
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What do we look for in science…?
• YOUR QUESTION• (get a piece of bellwork paper).
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Steps of the Scientific Method
• Sheets.• Walk-through.
• Concentrating on two parts today.
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HypothesisHypothesisHypothesisHypothesis
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Step 2: Form a Hypothesis
Hypothesis: an educated guess or prediction; an “if, then” statement
If ____independent variable______then__dependent variable_______
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Example: Independent Variable:
I feed my cat a lot of foodDependent Variable
she will get fat
If ___________________________then _________________________
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Remember
Try to use INCREASE and DECREASE in your hypothesis!
Ex. IF I increase the amount of food I give my cat, THEN she will increase her weight
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Now Try it on Your Own!
‘Writing a Good Hypothesis”Just ‘plug and chug’ in your variables!
Practice Sheet. variables (for partners)
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Variables…
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Types of VariablesThere are 2 main types of variables:
Independent Variable: The variable that is changed by the scientist; the ‘I control’ variable
Dependent Variable: The variable that might change because of what the scientist changes – what is being measured
•
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Your hypothesis can TELL you what your variables are!
Ex. If I drink Mountain Dew before bed, then I will not sleep very much.
IV: Drinking Mountain Dew DV: the amount of sleep
•
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PRACTICE!Use this hypothesis to identify the variables:
If I leave all the lights on all day, then my electric bill will be expensive
IV: ______________________DV: ______________________
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PracticeUse this hypothesis to identify the
variables:
If I leave all the lights on all day, then my electric bill will be expensive
IV: ______________________DV: ______________________
•
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If I brush my cat more, then there will be less fur on my furniture
IV: ______________________DV: ______________________
•
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Elizabeth wanted to test if temperature affected how fast milk goes bad and curdles. She left milk in a room temperature closet, a fridge, and a oven that was turned on low heat. She then measured how rotten the milk was after 10 days.
IV: ___________________________
DV:____________________________
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More practice• Partners.
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I may wind up regretting this…
http://www.youtube.com/watch?
v=hwU3YL_SD70&feature=related
• How do we learn?
•
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More practice…• On.• Your.• OWN.