作者：由Zander V. 2 天以前
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Whiteman Rules:
1: Unit of given (1st number) top 1st box. 2: Set up unit of given to cancel, unit solving (2nd number) for on top. 3: Insert number 1 for largest unit. 4: Do the conversion, cancel units (given), then solve.
How Do I Solve Conversion Problems?
Scientific Notation: An easier way to comprehend and write certain units using 10's.
Unit Modifiers: Certain symbols that come after units describing what the unit is and what placement it is on the modifier table.
Dimensional Analysis: The strategy that's used to convert a single unit into a bigger or smaller unit.
Converting Units: The previous strategy but for multiple units with different conversion units.
What is the Addition/Subtraction Rule?
When adding or subtracting, use the fewest number of decimal places.
What is the Multiplication/Division Rule?
When multiplying or dividing, use the fewest number of sig figs.
What is the Zero Rule?
1) Non-zero digits are significant. 2) Zeros in between other digits are significant. 3) Leading zeros are not significant. 4) Trailing decimals zeros are significant.
1) 5.4589 - 2.33 = 3.13 2) 16.872 + 3.8 = 20.7 3) 2.33 x 18 = 42 4) 31.9 / 7.318 = 4.36
1) 0.00004050 = 4 Significant Figures 2) 54,700 = 3 Significant Figures 3) 1,000.09 = 6 Significant Figures 4) 0.039 = 2 Significant Figures
Writing My Dicsussion
RULE #1 DO NOT STATE IF YOUR HYPOTHESIS WAS CORRECT OR INCORRECT RULE #2 DO THIS Explain what you learned from the experiment
EVIDENCE
Support your claim with experimental evidence - USE mathematical models - percent change, averages, percent accuracy, etc You must justify the your claim and evidence scientifically using the justification from your hypothesis.
JUSTIFICATION
Use the information in your hypothesis or class notes to support your claim. Inother words support your claim using what you have learned!!!
CLAIM
Describe the result of the experiment the result of the experiment
Calculations
Which Graph Should I Use?
Graphs
How DO I Organize Data?
Titles for Tables go Above the Table Make sure you Number them --> Tabe 1:
How Do I Write Hypothesis?
1. Make a claim that answers the testable question 2. Justify the claim scientifically. ***Include the variables ***Support the claim with scientific knowledge - the stuff we are learned
Example The incidence of depression for teenagers exposed to social media more than five hours per day will increase since they will have less social interaction with peers.
Subtopic
How Do I Write a Testable Question?
Ask a question using the INDEPENDENT AND DEPENDENT VARIABLES
EXAMPLE Does exposue to social media for more than 5 hours per day increase or decrease the incidence of depression in teenagers?
How does changing how much time people are allowed to be outside for change how people treat their time outside?
What are Variables For Experiments?
Should Do's 1. Identify adn Describe the variabels in ana experiment. 2. Identify the variables for an experiment. 3. Organize data and present data in tables or graphs. 4. Discuss experiemnntal findings.
Should Knows 1) Define each variable independent, dependent, constant and control
What is the difference between quantitative and qualitative experiments?
Qualitative
Based on quality instead. (Expectations)
Quantitative
Numerical/Measurements & Calculations. (Reality)
Constant
Anything in the experiment that stays the same.
Control
The normal condition/Theoretical value.
Dependent
What's affected in the experiment. (Responding)
Independent
What changes the experiment. (manipulated)
