Unit 1 Science Skills (Zander V)

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1 Science Skills

Vocabulary

Topic 1.2 Metric Conversions

Practice

How Do I Solve Conversion Problems?

Mini Lecture 1.1 Significant Figures

Should Knows 1. Zero Rule, Addition Rule, Multiplication Rule, Rounding Rule Should Do's 1. Present answers using Sig Figs

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

Topic 1.0 Accuracy Vs Precision

Should Knows Define: Accuracy, Precision Should Do's Contrast Accuracy & Precision

Mini Lecture 1.0 Writing a Lab Report

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)