BME100 s2015:Group35 L1

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Lab Write-Up 1 | Lab Write-Up 2 | Lab Write-Up 3
Lab Write-Up 4 | Lab Write-Up 5 | Lab Write-Up 6
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Name: John Templeton
Name: Jessica Schiltz
Name: Hannah Horeczko
Name: Kristen Okada
Name: Arianna Moreno
Name: Joslin Jose


This problem is an example to be used as a guide for your lab write up.

John asks “Why do some of my marigolds grow better in one part of the yard than the other?”

Independent and Dependent Variables

Independent Variables: Water, Soil Type, Sunlight, etc. Dependent Variables: Growth Rate, Final Size, Health, Color, etc.

Experimental Design

Control Group: Group receives normal soil found in yard, normal water supply, normal sunlight exposure.

Experimental Groups:

1)Normal soil, normal water, extended sun exposure

2)Normal soil, normal water, minimized sun exposure

3)Normal soil, normal water, no sun exposure

4)Normal soil, normal water, artificial sun exposure (24 hour sun)

  • Keeping all controls the same except sun exposure time. Could alter different independent variables one or more, but for ease of use, one was chosen.

Seedlings - From seed

Store Bought Plants - Already Flowering

Number of subjects per group
20 total plants per group (10 - seedlings and 10 - flowering plants)

5 Groups as seen above

Total: 100 plants

Subject Selection

The subject types selected were to ensure that the pre-grown plants were not the reason for them being healthy, nor that the seedling plants could adapt better to the environment as they attempt to flower.

Sources of Error and Bias

Not all plants have the exact same soil around them, rooting may allow for more water exposure, seedlings may be at different points of germination, flowering plants may be older than others, un-predicted weather changes (clouds, rain, etc.)