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Scientific Inquiry

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by

Jeni Kosiak

on 14 September 2014

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Transcript of Scientific Inquiry

Gathering Information
Materials/Procedure
Drops on a Penny Quantitative Data
Conclusion
Application
Science Prophecies
The Scientific Method Is Not So Orderly
Data
Qualitative vs Quantitative
Repeating The Work
Mistakes
Quantitative Graphing
Science is about asking and solving questions.

Purpose is a question to be considered, solved, or answered.


Question
An educated guess based on what you know about the topic personal experiences and/or research.
Hypothesis
Controlled Group
Controlled Variable
Variables
Scientific Inquiry
What Is Science????
Science is the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.
Name a scientist.
Albert Einstein
Galileo Galilee
Antonie Van Leeuwenhoek
Issac Newton
Ibn Al-Haytham
Father of Modern Science
1st known scientist who controlled and repeat experiments. (Followed a method.)
Science is based on observation. Scientists use all of their senses to gather information about the world around them.
Observation leads to questioning
AKA Purpose
AKA Problem
Examples of Purposes
Which liquids surface tension, water or vinegar, can a penny hold the longest?

How does human activity affect climate change?

Why are honeybee populations suddenly declining in North America?

What enables birds to migrate such long distances?

How do black holes form?
Which liquids surface tension, water or vinegar, can a penny hold the longest?
Where do you find information?
Computer
Internet - YouTube - Applications
Library
Books -Magazines -Dictionaries - Encyclopedias
Observations
What You See - Past Experiences
People
Emails - Conversations - Phone Calls - Brainstorming
Surface Tension
Attraction of water molecules.
Unsinkable Ants
Surface Tension & Fire Ants
Materials
Items needed for the experiment.
List Vertically & Use Bullet Points
Materials
Penny
Water (H20)
Vinegar (CH3COOH)
Dropper - Pipette
Paper Towel
Beaker
Procedure
Step by step instructions of how to do the experiment.
Correct Order & Numbered
Procedure
1. Get materials.
2. Dry off penny.
3. Place penny on the paper towel.
4. Place and count the water drops on the penny
until it explodes over the edges.
5. Repeat two more times with the water
6. Follow the same procedure. (1-5) but with
vinegar instead.
Controlling all factors so there is only one item being tested. (Same)
Sometimes scientists have to perform an experiment the same as what normally happens so they have a baseline.
Variables
Manipulated Variable
or
Independent Variable
The
one
factor being tested.
Only one should be tested at a time.
Responding Variable
or
Dependent Variable
How the data should be measured
The experiment results are measured in ___.
M manipulated
I independent
X x-axis
D dependent
R responding
Y y-axis
Control
Manipulated/Independent
Responding/Dependent
(Same)

Method of testing
Materials
Side of penny
Drying of penny
(Tested)

Vinegar
vs.
Water
(Unit)

Measured by number of drops on the penny
Controlled
Manipulated - Independent
Responding - Dependent
Quality
Number
Bar Graph
-Shows how many
Line Graph
- Shows one variable over time
Circle Graph
- Shows parts of a whole
Pictograph
- Shows how many with pictures
Data & Graphs
Record in a data table
Has to be in
metrics
to be accepted in the science community
Graphs can be made to observe the data clearer
Qualitative Data
Spontaneous Generation
How to Graph
Clever title
Label X&Y axis
Put numbers on the line
Numbers evenly spaced (by 1's or 2's or 5's etc.)
Graph fills at least the page
Make key (only if needed)
Neat & Creative
Name
Answer the question you first stated.
What happened????
Example -- I believe that a plant will grow better in the light because we noticed that in the garden the plants under the evergreen died faster.
Use evidence to tell WHY you think the way you do.
Failure is always an option
However, you don't want to make the same mistake twice
A good scientist would have to think about what mistakes could have been made to try to control the experiments.
What could have been done to make this experiment better.
What could have happened that may have changed the results.
If your data does not match your hypothesis do not change it !!!!!!!!!!!!!!!!!!
When you make mistakes you learn things
A scientist would want to repeat the experiment many many times to make sure the data is correct.
If repeated enough or align to other experiments and observations, a conclusion can become a theory.
How the information learned relates to the outside world, or why it is important.
Items in nature, life, careers, etc.
What new experiments could you come up with?
All science has to come from an idea or question
1)When a distinguished scientist states something is
possible it is possible, if a distinguished scientist states
something is impossible it is still probably possible.
2) In order to make discoveries you need to go from the
possible to the realm of the impossible to make
fantastic discoveries
3) Any great discovery is indistinguishable from magic to
others.
Author C. Clark
Scientists do not always follow the same steps.
Sometimes scientists run experiments with several variables.
Sometimes the only thing scientist can rely on is observational work.
Scientists also build models and engineer prototypes to see if they work.
Some discoveries were made on accident.
Accidental Discoveries
Plastic
Playdoh
Silly Putty
Cheese
Frisbee
Velcro
Potato Chips
Penicillin
Microwave
Oven
Cola
Glass
Jeans
Fireworks
Cornflakes
Slinky
Paper
Towels
Chocolate Chip Cookies
IS THIS SCIENCE ??
Evidence
-Evidence makes the guess educated
What is going on in the photo?
Evidence
A conclusion needs to be proven with evidence from observations or data
Which liquids surface tension, water or vinegar,
can a penny hold the longest?
Full transcript