mr. lambert integrated science 1a trimester 1, 2014
DESCRIPTION
1. Come up with a hypothesis for the following question: Bell Ringer 1. Come up with a hypothesis for the following question: Do wounds heal faster when they are covered by Band-Aids? 2. How could you test this?TRANSCRIPT
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Scientific MethodMr. LambertIntegrated Science 1ATrimester 1, 2014
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+Bell Ringer
1. Come up with a hypothesis for the following question:
Do wounds heal faster when they are covered by Band-Aids?
2. How could you test this?
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+Agenda
1. Bellringer
2. Learning Targets
3. Scientific Method
4. Scenario activity
5. Design your own experiment
6. Exit Slip
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+Learning Targets
On your Bell Ringer Sheet, write the following:
I can define important vocabulary about the Scientific Method.
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+The Scientific Method1. Ask a Question2. Make a Hypothesis3. Design an Experiment4. Analyze Data5. Draw Conclusions
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+ 1. ObservationLooking at something very closely
Example: Hmmm….fish in small bowls are small, but fish in big bowls are big.
Look for patterns!
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+2. Ask a questionWhat are you curious about?
Example: Why are fish in fishbowls small, but fish in fish tanks big?
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+ 3. Form a hypothesis
A prediction that can be tested using the scientific methodExample: Fish in large environments will grow to be
larger in size.
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+ 3. Form a hypothesis
Key points:1. Can be TESTED2. Is state as FACT, not feeling or thought or
belief
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+4. Design an experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.Example: I place one goldfish in a small bowl and one
goldfish in a big tank. After three months, I compare their sizes.
Good experiments have several components!
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+ExperimentIndependent variable – what the experimenter changesExample: The liquid I feed the plants
Dependent variable – What changes as a result of changes made in the independent variableExample: Plant growth
Control - group that serves as the standard of comparisonExample: Feed plant water
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+Analyze results and draw conclusions
I compared the size of my two fish after 3 months and the fish in the large tank was bigger! My hypothesis was correct!
Hypothesis wrong = NEW HYPOTHESISHypothesis right = SHARE RESULTS!
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+Video!
Big bang theory scientific method http://www.youtube.com/watch?v=_7sSuhQ1_24
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+Scenario activity
Individually determine the following:HypothesisIndependent variableDependent variableExperiment to test the hypothesisConclusion
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+ Scenario #1In a science fair, Tina asks the question “Does caffeine increase the heart rate of an earthworm?” In Test 1, she measures the heart rate by looking at the earthworm under a microscopes, the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2, she places a few drops of caffeine on the earthworm’s skin and measures the rate again. In this test, the heart rate is 68 bpm.
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+ Scenario #2Bart believes that mice exposed to radiowaves will become extra strong (maybe he's been reading too much Radioactive Man). He decides to perform this experiment by placing 10 mice near a radio for 5 hours. He compared these 10 mice to another 10 mice that had not been exposed. His test consisted of a heavy block of wood that blocked the mouse food. he found that 8 out of 10 of the radiowaved mice were able to push the block away. 7 out of 10 of the other mice were able to do the same.
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+Design your own experiment!Question: Which is stronger, a Kleenex or no-name tissue brand?1. Come up with a hypothesis.2. Design an experiment using the following materials:
a. Cup/glass jarb. Rubber bandc. Pennies/washers/weightsd. Two types of tissues
3. What is the independent variable, dependent variable, and control?
4. What is your conclusion? What is your evidence for this conclusion?
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+Exit Slip
Does the hormone estrogen increase the milk yield of dairy cows?Come up with a hypothesis for this questions.
Design an experiment to test your hypothesis.