sci method intro
TRANSCRIPT
-
8/4/2019 Sci Method Intro
1/19
September 06, 20
The scientific method is anorganized way of figuringsomething out.
-
8/4/2019 Sci Method Intro
2/19
September 06, 20
Mrs. Shelly made anobservation....
Laundry detergent pricescontinue to increase
-
8/4/2019 Sci Method Intro
3/19
September 06, 20
Testable Problem
Which brand of laundry detergent is best atgetting rid of stains?
-
8/4/2019 Sci Method Intro
4/19
September 06, 20
My Hypothesis:(educated guess, based onresearch or general knowledge)
IfI test the effectiveness of differentlaundry detergents on a soda stain thenthe generic brand will be as effective asthe name brand detergents at removing
the stain.
-
8/4/2019 Sci Method Intro
5/19
September 06, 20
My materials
-
8/4/2019 Sci Method Intro
6/19
September 06, 20
Must have a controlled investigation!
All of the variables (anything that can
change in an investigation) are kept thesame EXCEPT the type of detergent thatwe use.
The variable that we change is called theindependent variable
The variable that we are measuring, orrecording is the dependent variable
-
8/4/2019 Sci Method Intro
7/19
September 06, 20
What are the constants?(Everything that remained the samein the investigation)
-
8/4/2019 Sci Method Intro
8/19
September 06, 20
What is the Independentvariable?(The 1 thing that was changedon purpose)
Content/writing space
-
8/4/2019 Sci Method Intro
9/19
September 06, 20
What is the Dependent variable?(what we are recording in the data table)
Content/writing space
-
8/4/2019 Sci Method Intro
10/19
September 06, 20
Recording Results in the Data Table
Before:
Ultra Extra Ultra Tide Ultra Kirklands
After:
-
8/4/2019 Sci Method Intro
11/19
September 06, 20
Analyze Results
While it appears that alldetergents were equallyeffective....
I need to complete more trialsto make a fair conclusion.
-
8/4/2019 Sci Method Intro
12/19
September 06, 20
Important Info
Must be able to test the hypothesis Can only change 1 variable - the independentvariable
You measure the dependent variable (it's whatyou record in the data table)
You must control all of the variables (except for
one) in order to draw a logical conclusion Repeat many times, then analyze your resultsbefore drawing conclusions
-
8/4/2019 Sci Method Intro
13/19
September 06, 20
Sort the keywords.
Word Description
Description 1
Label
-
8/4/2019 Sci Method Intro
14/19
September 06, 20
-
8/4/2019 Sci Method Intro
15/19
September 06, 20
Your turn!
Mrs. Shelly will demonstratea proper scientific
investigation. Use the iPadsto identify the variables.
-
8/4/2019 Sci Method Intro
16/19
September 06, 20
-
8/4/2019 Sci Method Intro
17/19
September 06, 20
DATA TABLE: Time it took the paper to hit the ground
Flat Paper
(time in seconds)
Loosely Crumbled Paper
(time in seconds)
Tightly Crumbled Paper
(time in seconds)
Time inseconds
Flat Paper Loosely Crumbled Tightly Crumbled
-
8/4/2019 Sci Method Intro
18/19
September 06, 20
Identify the Variables!
Independent Variable:
Dependent Variable:
Controlled Variables(constants):
-
8/4/2019 Sci Method Intro
19/19
September 06, 20