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Scientific Inquiry

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Scientific Inquiry Scientists are CURIOUS they ask questions that make them want to investigate. OBSERVANT they look at the world around them CREATIVE ... – PowerPoint PPT presentation

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Title: Scientific Inquiry


1
Scientific Inquiry
2
Scientists are
  • CURIOUS they ask questions that make them want
    to investigate.
  • OBSERVANT they look at the world around them
  • CREATIVE they think about what they already
    know to explain their observations and come up
    with plans to test their ideas
  • SKEPTICAL they question their own conclusions
    and except only explanations based on evidence

3
  • Science is the continuous process of asking
    questions and seeking answers!

4
Scientific Inquiry
  • The process that allows us to think about and
    design an experiment to help us find the answers
    to our questions!

5
Scientific Inquiry
  • Problem
  • Hypothesis
  • Experiment
  • Materials - Variables/Controls
  • Procedure - Observations
  • Results
  • Charts/Graphs
  • Conclusion
  • Limitations

6
Problem
  • Identify by asking a question
  • Only part of the process that will end with a
    question mark.
  • As you do research/perform the experiment you
    make ask more questions!

7
Our example
  • Which brand of paper towels is the most
    absorbent?

8
Hypothesis
Thinkers
  • Tentative explanation
  • Educated guess/prediction
  • What do you think will happen
  • when you perform your experiment?
  • Written in the form of an IF/THEN statement.
  • IF three brands of paper towels are tested, THEN
    Bounty will be the most absorbent.

9
Experiment
  • An organized procedure used to study something
    under controlled conditions.
  • Consists of two parts
  • Materials
  • Procedure

10
  • Materials items needed to
  • perform the experiment
  • Graduated cylinder, beaker, lab sheet, pencil,
    paper towels, triple beam balance, water
  • Procedure sequence of actions or instructions
    to be followed
  • The STEPS of the experiment!

1. 2. 3. 4. 5.
11
Variables
  • Independent Variable (IV)
  • the factor being tested
  • paper towels
  • Dependent Variable (DV)
  • the factor being measured
  • amount of water the paper towels absorb

y axis
DV
x axis
IV
12
Constants
  • Factors that remain the same throughout the
    experiment
  • Examples
  • The size of the paper towel
  • The type of liquid used
  • Using same balance to mass wet towels
  • OTHERS?

13
Control
  • Serves as a basis for comparison
  • Ex a paper towel that is not wet

14
Trials
  • The number of time the IVs are tested
  • The more the better!

Not this kind!
15
Observations
  • Made during the course of an experiment using
    your senses or equipment
  • Often recorded in data tables
  • Examples
  • Temperatures
  • Times
  • Color changes

16
Data
  • One type of observation
  • Evidence collected during a lab

TRIAL 1 2 3 4
TEMP
17
Results
  • We often use charts and graphs to show our
    results.
  • You may also write results statements that put
    your observations/data into paragraph form.

18
Conclusion
  • Statement indicating whether your hypothesis was
    correct or incorrect.
  • Use one of the following in your conclusion
  • Supported
  • Rejected
  • Could neither support nor reject
  • Example
  • The results of my experiment rejected my
    hypothesis go on to tell why.

19
Limitations
  • Unforeseen problems with an experiments design
  • What went wrong during the lab.
  • Examples
  • Complete more trials
  • Test more paper towel brands
  • We spilt something beside water on the towels
  • Used the wrong mass
  • Forgot to test one brand

20
Click the link
http//www.youtube.com/watch?vKZaCy5Z87FAappdes
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