BIO-PROCESS LAB (B) 				2010
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BIO-PROCESS LAB (B) 2010. KAREN LANCOUR Bio-Process Lab NATIONAL SUPERVISOR [email protected] Bio-Process Lab (B). Event Description - lab-oriented competition involving the fundamental science processes of a middle school biology lab program

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BIO-PROCESS LAB (B) 2010

KAREN LANCOUR

Bio-Process Lab

NATIONAL SUPERVISOR

[email protected]


Bio process lab b
Bio-Process Lab (B)

  • Event Description -lab-oriented competition involving the fundamental science processes of a middle school biology lab program

  • Event – lab practical in stations

  • Event Parameters –be sure to check the rules for resources allowed, type of goggles needed.


Training materials
TRAINING MATERIALS

  • Training Handout– content

  • Event Supervisor Guide– sample stations, process skills, methods

  • Internet Resource– links to on-line courses, lab manuals, notes, sites

  • Sample Tournaments– sample stations with key


Basic science process skills

Observing

Measuring

Inferring

Classifying

Predicting

Communicating

Basic Science Process Skills


Integrated science process skills
Integrated Science Process Skills

  • Formulating Hypothesis

  • Identifying Variables

  • Defining Variables Operationally

  • Describing Relationships Between Variables

  • Designing Investigations

  • Experimenting

  • Acquiring Data

  • Analyzing Investigations and Their Data

  • Understanding Cause and Effect Relationships

  • Formulating Models


Student preparation
Student Preparation

  • Team work skills

  • Time limits

  • Answering questions

  • Measurement and Calculations

  • Reference materials

  • Practice using labs and lab manuels

  • Construct sample stations


Compound microscope

Parts

Making wet mount

Appearance of objects

Movement of objects

Magnification

Changing objects

Estimating size of objects

Field diameter & area

Compound Microscope




Stereomicroscope
Stereomicroscope

  • Parts

  • Appearance of objects

  • Magnification

  • Advantages

  • Uses

  • Observing objects


Electronic balance
Electronic Balance

  • Capacity

  • Units

  • Tare or Zero

  • Err

  • Using the Balance

  • Advantages & Disadvantages


Triple beam balance
Triple Beam Balance

  • Capacity – auxillary weights

  • Units – numbered and unnumbered increments

  • Tare

  • Using the Balance

  • Advantages & Disadvantages


Measuring liquids
Measuring Liquids

  • Meniscus – read bottom

  • Capacity and Range

  • Graduations – numbered and unnumbered increments

  • Readability

  • Making measurements

  • Estimating


Metric ruler and calipers
Metric ruler and calipers

  • Capacity and Range

  • Numbered and unnumbered increments

  • cm vs mm

  • Uses of each

  • Making measurements

  • Estimating

  • Vernier Scale


Thermometers
Thermometers

  • Capacity and Range

  • Do not start at zero

  • Numbered and unnumbered increments

  • Uses of each

  • Making measurements

  • Estimating


Probes
Probes

  • Graphing calculator

  • Easy link or CBL

  • Probe

  • Collect data onto calculator

  • Transfer data to computer

  • Graph analysis

  • Quick data collection


Data presentation and analysis data tables
Data Presentation and Analysis- Data Tables

  • Format

  • Title

  • Units of measurement

  • Numbering Tables

  • Source


Data presentation and analysis graphs

Graph – types

X vs Y axis

Scaling axis

Plotting points

Human Error

Curve or best fit line

Labeling

Data Presentation and Analysis-Graphs


Human mistakes vs experimental errors
Human Mistakes vs Experimental Errors

  • Human Mistakes – carelessness

  • Experimental Error – instrument variation or technique

  • Random Error – chance variation

  • Systematic Error – system used for designing or conducting experiment


A Sample Dichotomous Key

  • 1. wings covered by an exoskeleton . . . . . . go to step 2  1. wings not covered by an exoskeleton. . . . go to step 3

  • 2 body has a round shape. . . . . . . . ladybug 2 body has an elongated shape. . . . . .grasshopper

  • 3.wings point out from the side of the body . . dragonfly3 wings point to the posterior of the body.. . . . Housefly

  • Note: There should be one less step than the total number of organisms to be identified in your dichotomous key.


Sample stations population density
Sample Stations – Population Density

  • Measure sample area

  • Determine population density for symbols

  • Assign an organism to symbols

  • Form a food chain

  • Evaluate sample – predict techniques, etc.


Sample station dichotomous key
Sample Station – Dichotomous Key

  • Have specimens of leaves

  • Formulate a key or use a key to identify specimens


Sample station measurement
Sample Station - Measurement

  • Identify range, capacity, incrementation

  • Do measurement – estimate last digit


Sample station experiment analysis
Sample Station – Experiment Analysis

  • Analyze the design of the experiment

  • Identify variables

  • Explain results – form conclusions


Sample station microscopy
Sample Station – Microscopy

  • Determine the diameter of the field and the length of one cell in mm and convert to mcm.


Sample station data analysis

Making hypotheses

Food web analysis

Eating habit analysis

Predictions and conclusions

Inferences

Sample Station – Data Analysis


Sample station ph
Sample Station – pH

  • Determine the pH of various solutions using either pH probe or pH test papers.


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