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Project title Stoma density and water lossFeatured science projectScience project video
Difficulty Level Middle school
Project page  Click here to view this science project

Description
This science fair project was conducted to compare the relationship between stoma density and loss of water through transpiration. The experiment was performed with large leaves from the elephant ear plant, the money plant (medium size leaves) and ivy (small leaves). 

Instructions preview
1. For this science project, the independent variable is the type of plant used – the ivy (_HEDERA)_, money plant (_EPIPREMNUM AUREUM)_ and elephant ear plant (a member of the Caladium family). The dependent variable is the amount of water lost from the beaker through evaporation and transpiration. This is determined by using the measuring cylinder to measure the water after 5 days. The constants (control variables) are the size of the plants, the size of the beaker, the amount of water in the beaker, the room temperature, wind in the room and the amount of sunlight received by .....
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