Experimental Design SEED GERMINATION OUT OF THE 100 BEAN SEEDS I PLANTED IN MY GARDEN, ONLY 35 GERMINATED INTO HEALTHY PLANTS? HOW CAN I INCREASE THE PERCENT OF BEAN SEEDS THAT GERMINATE?

Variables in 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? o C, H 2 O, 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:

SIMULATION CLICK TO LAUNCH Gizmo Log On using your Username and Password Type ‘Seed germination’ in Search box then Launch Gizmo SET SEED TYPE TO ‘B’ SET LIGHT TO 50 SET TEMPERATURE TO 25 o C SET WATER TO 25 DROPS/HOUR RUN FOR 5 DAYS CLICK ON GRAPH TAB RECORD RESULTS ON DATA TABLE CHANGE WATER TO 50 (75, 100) REPEAT.

DATA TABLE Water (Drops per hour) Percent of Seed Germination Trial 1Trial 2Trial 3Trial 4AverageClass Average

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

COMPLETED GRAPH

CONCLUSIONS 1. 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