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Warm up. Suppose someone told you that 1 pound of feathers was heavier than 1 pound of gold. How would you prove them wrong? What equipment would you need to show them that they were incorrect?. Scientific Method. What is the Scientific Method?.

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Presentation Transcript
warm up
Warm up
  • Suppose someone told you that 1 pound of feathers was heavier than 1 pound of gold.
    • How would you prove them wrong?
    • What equipment would you need to show them that they were incorrect?
what is the scientific method
What is the Scientific Method?
  • A series of steps that scientists use to answer questions and solve problems
step 1 ask a question
Step 1 : Ask a Question
  • Asking a question helps focus an investigation.
  • “Which is heavier?”
step 2 research
Step 2: Research
  • In order to test a hypothesis scientist gather data on their question.
  • “I know for a fact that feathers are very light.”
step 3 form a hypothesis
Step 3: Form a hypothesis
  • A hypothesis is a possible explanation, or answer to a question.
  • “I think gold is heavier.”
step 4 experiment
Step 4: Experiment
  • To test a hypothesis scientist conduct a controlled experiment.
  • “I will weigh each item on a triple beam balance.”
make observations
Make Observations
  • Scientist look at the results from their experiments and record the data.
  • “I see that a cubic cm of gold is heavier than a cubic cm of feathers.”
keeping good records
Keeping Good Records
  • Scientists keep very detailed records for many reasons.
    • Prevent opinions from interfering

2. Keep notes for future experiments

3. Communicate with future scientists

step 5 draw conclusions
Step 5: Draw Conclusions
  • After analyzing their results, scientists decide if their results support their hypothesis.
  • If the hypothesis is wrong, the scientist will change the hypothesis and repeat the experiment.
warm up use your note from yesterday
Warm up(Use your note from yesterday.)
  • Tell what part of the scientific method each scenario fits.
    • Is cold air heavier or lighter than hot air?
    • I think that a black shirt will make you warmer than a white shirt.
    • The professor that I talked to said that inch worms are longer than earth worms.
the scientific method
The Scientific Method
  • Question
  • Research
  • Hypothesis
  • Experiment
  • Conclusions
the scientific method in action
The Scientific Method in Action
  • Question:
    • Which will bounce higher, a bouncy ball or a rubber band ball?
the scientific method in action1
The Scientific Method in Action
  • Research
    • Which feels softer?
    • Which is heavier
    • Which is more rubbery?
the scientific method in action2
The Scientific Method in Action
  • Hypothesis
    • I think the _________________ will bounce higher.
the scientific method in action3
The Scientific Method in Action
  • Experiment
    • How will I test this hypothesis?
the scientific method in action4
The Scientific Method in Action
  • Conclusion
    • Which bounced higher?
    • Was my hypothesis correct?