Power Point - Science Olympiad

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BIO-PROCESS LAB (B)

2016

KAREN LANCOUR

National Committee Chair-Life Science

Bio-Process Lab National Supervisor karenlancour@charter.net

Event Rules – 2016

DISCLAIMER

This presentation was prepared using draft rules. There may be some changes in the final copy of the rules .

The rules which will be in your Coaches Manual and

Student Manuals will be the official rules.

Event Rules – 2015

BE SURE TO CHECK THE 2016

EVENT RULES FOR EVENT

PARAMETERS AND TOPICS

FOR EACH COMPETITION

LEVEL

TRAINING MATERIALS

Training Power Point – content overview

Training Handout - content information and needed skille

Practice Activities - sample stations with key

Sample Tournaments – sample problems with key

Event Supervisor Guide – prep tips, event needs, and scoring tips

Internet Resource & Training CD’s – on the Science Olympiad website at www.soinc.org

under Event Information

Biology-Earth Science CD , Bio-Process Lab CD (updated 2015) in Science Olympiad Store at www.soinc.org

Biology lab manuals – identify variables and evaluate the labs

– become familiar with typical bio labs

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.

Basic Science Process Skills

Observing

Measuring

Inferring

Classifying

Predicting

Communicating

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

GAME PLAN

USE THE POWERPOINT FOR OVERVIEW

USE THE HANDOUT FOR DETAIL OF INFORMATION NEEDED

AND TYPE OF QUESTIONS

GO TO THE INTERNET RESOURCES AND CD’S FOR MORE HELP

DO THE PRACTICE ACTIVITIES TO MASTER SKILLS

DO THE SAMPLE TOURNAMENTS UNDER TIMED CONDITIONS

TO EXPERIENCE COMPETITION SITUATION

DO OLD TOURAMENTS– PRACTICE, PRACTICE, PRACTICE

THE KEY TO SUCCESS – THE BEST WAY TO LEARN THE SKILLS

IS BY DOING

Student Preparation

Team work skills – work as a team

Many mistakes are made when work is split to save time – results in many errors

Time limits – invest in a timer and practice using it

Check station setups – to see what is available to help you

Answering questions – see student preparation guide

Be sure to read questions and do all parts requested

Measurement and Calculations – check graduations and remember units

Reference materials – make them functional for competition under timed conditions

Practice, Practice, Practice using the skills you have learned

Compound Microscope

Parts

Making wet mount

Appearance of objects

Movement of objects

Magnification

Changing objects

Estimating size of objects

Field diameter & area

Principles of Microscopy

Measuring Objects under

Microscope

Sample Station –

Microscopy

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

Stereomicroscope

Parts

Appearance of objects

Magnification

Advantages

Uses

Observing objects

Examining Instrument

Graduations Before Measuring

• Capacity - highest it will read – starts at zero

• Range if does not start at zero as thermometer

• Numbered Increments (graduations)

• Unnumbered Increment (graduations)

MANY ERRORS ARE MADE BECAUSE STUDENTS DO NOT

EXAMINE THE GRADUATIONS BEFORE MEASURING !!!!!

Measuring Liquids

Meniscus – read bottom

Capacity and Range

Graduations – numbered and unnumbered increments

Readability

Making measurements

Estimating

Metric ruler and calipers

Capacity and Range

Numbered and unnumbered increments cm vs mm

Uses of each

Making measurements

Estimating

Vernier Scale

Thermometers

Capacity and Range

Do not start at zero

Numbered and unnumbered increments

Uses of each

Making measurements

Estimating

Sample Station -

Measurement

Identify range, capacity, incrementation

Do measurement – estimate last digit

Triple Beam Balance with

Weights

• Expands capacity of the balance from 610g to 2610 grams

• 2 weight equivalent to 1000 g and 1 weight equivalent to 500 g

• Actual mass of weight is listed on the top of the weight.

Triple Beam Balance

Capacity – auxillary weights

Units – numbered and unnumbered increments

Tare

Using the Balance

Advantages &

Disadvantages

Electronic Balance

Capacity

Units

Tare or Zero

Err

Using the Balance

Advantages &

Disadvantages

Probes

Graphing calculator

Easy link or CBL

Probe

Collect data onto calculator

Transfer data to computer

Graph analysis

Quick data collection

Sample Station – pH

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

Data Presentation and

Analysis- Data Tables

Format

Title

Units of measurement

Numbering

Tables

Source

Leg (thigh)

Length (cm)

24

31

37

38

39

42

55

62

Time of 40 yard dash (sec)

9

9.2

11

10

8.2

8.4

9.3

9

Data Presentation and Analysis-

Graphs

Graph – types

X vs Y axis

Scaling axis

Plotting points

Human Error

Curve or best fit line

Labeling

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.

Experimental Analysis

Identify variables

Examine procedure – will it evaluate allow the hypothesis to be tested?

Evaluate observations to understand what happened and why

Analyze data and identify errors

Determine if the hypothesis is true – if false what was not considered?

Propose further testing or new hypothesis

Sample Station –

Experiment Analysis

Analyze the design of the experiment

Identify variables

Explain results – form conclusions

Data Analysis

Use observations to understand what happened during the experiment

Look for possible types errors

Look for patterns in the data

Do data analysis as mean, median, mode

Examine group vs. class results data

Use data to evaluate hypothesis

Sample Station –

Data Analysis

Making hypotheses

Food web analysis

Eating habit analysis

Predictions and conclusions

Inferences

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 . . dragonfly

3 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 Station –

Dichotomous Key

Have specimens of leaves

Formulate a key or use a key to identify specimens

Key to Success in

Bio-Process Lab

Learn the Skills – using Practice Activities

Practice under Timed Conditions

Work as a Team – saves time and catches errors

Pay attention to details – avoid silly mistakes

Relax and let the competition show you how much you have learned

Have fun !!!

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