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Experimental DesignOUT OF THE 100 BEAN SEEDSI PLANTED IN MY GARDEN, ONLY 35 GERMINATED INTOHEALTHY PLANTS? HOW CAN I INCREASE THE PERCENT OFBEAN SEEDS THAT GERMINATE?
Seed Germination
Temperature of Soil
Amount of Light Amount of Water
Percent of seeds that germinate
Amount of Time
Type of Seed
THE HYPOTHESIS
• CHANGE ONLY ONE INDEPENDENT VARIABLE,
• WHICH SHALL IT BE? oC, H2O, Light, Time
IF ___(independent variable)_____ IS __(describe change)___
IF THE IS INCREASED
THEN __(dependent variable)___ will __(describe change)__
THEN THE WILL INCREASE
THE EXPERIMENT
Levels of the IV (Drops per hour)
Number of Trials
IV: Amount of Water
DV: Percent of Seed Germination
Constants:1. 2.
3. 4.
SIMULATION
SET SEED TYPE TO ‘B’SET LIGHT TO 50
SET TEMPERATURE TO 25oCSET WATER TO 25 DROPS/HOUR
RUN FOR 5 DAYSCLICK ON GRAPH TAB
RECORD RESULTS ON DATA TABLECHANGE WATER TO 50 (75, 100)
REPEAT.
Click here for directions for setting up an account with Gizmos
Variables
DATA TABLE
Drops perHour
Percent of Seed Germination
Your results
Neighbor Neighbor Neighbor Average Class Average
25
50
75
100
Graphing the Data(Insert the data, create a Bar Graph
and Label the graph)Input the data into Logger Pro
– Amount of Water – Class Average of Percent of Germination
Tutorial on using Logger Pro
CONCLUSIONS1. What was the purpose of the experiment?
2. What were the major findings?
3. Was the hypothesis supported by the data?
4. What possible explanations can you offer for the findings?
5. What recommendations do you have for further study and for improving the experiment?
EVALUATION
COMPLETE THE ASSESSMENT QUESTIONS FOUND BELOW THE SIMULATION
AND THEN CHECK YOUR ANSWERS
PRINT OUT YOUR COMPLETED LAB REPORT AND HAND IT IN TO THE INSTRUCTOR
Step Ten
Click to copy To clipboard
Select Blank Document
Type Information
Then Paste in Graph
Go back to GizmoSelect Graph and copy
To clipboard
Paste into document
TypeGo back to Gizmo
Reset variableRepeat capture and paste