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Research Question and Hypothesis
Research Question and Hypothesis
What is the effect of light on the germination of Lima beans?
Standards
Standards
Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales. HS-LS2-1
Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem. HS-LS2-6
Students will vary the amount of light exposed to the Lima beans from different bags.
Independent variable
Independent variable
Light
Dependent variables
Dependent variables
Experimental Design
The dependent variable is the length of the germination (stalk growth)
Series
Series
The series that will be tested here is the amount of light exposed to the beans. The length of the stalk of the Lima bean (dependent variable) as a function of light (independent variable) for 10-day period.
Constants and Controls
Constants and Controls
Constants/Controls: the amount of water provided to each bag, same type of seed, same plastic bag container
Materials
-Lima beans
-ziplog bag/stapler
-paper towel
-water
Procedures
Procedures
1) Put 4 Lima bean seeds per bag. Label each bag (#1,2,3)
2) Staple across the ziplog bag so that the seeds would not be submerged in excess water. Fold the paper towel and lay it to the bottom of the bag next to the staples line.
3) Spread out the seeds. Pour water into the bag. Take pictures every two days.
Sample data and graphs
Sample data and graphs
Analysis & Conclusions
Looking at the length of the stalk from each bag, what would you conclude would be the effect of light on the germination of Lima beans.
Photos & Movies
References
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