Can Water Plants Be Used to Determine Water Quality? *
|Areas of Science||
|Time Required||Long (2-4 weeks)|
|Material Availability||Duckweed can be purchased from plant nurseries, or you can also find it growing naturally in local ponds and marshes. If you find the duckweed in a local water source, make sure you get permission from the land owner or town before taking any.|
|Cost||Low ($20 - $50)|
*Note: This is an abbreviated Project Idea, without notes to start your background research, a specific list of materials, or a procedure for how to do the experiment. You can identify abbreviated Project Ideas by the asterisk at the end of the title. If you want a Project Idea with full instructions, please pick one without an asterisk.
AbstractSome plants grow only in water-logged environments. These plants are usually native to wetlands and are important for the sustainability of aquatic ecosystems. Wetland ecosystems are very fragile and susceptible to the toxic dumping of sewage and fertilizer run-off from neighboring farm land. One very common aquatic plant called duckweed inhabits many wetland marshes. Duckweed grows by asexual reproduction and floats at the surface of the water with tiny roots extending into the water below. Can you find duckweed from a local pond or wetland? You can grow the duckweed at home in bowls of water. Will the duckweed grow well in different types of water? Will it grow better in bottled mineral water than when using tap water? What will happen to duckweed grown in acidic water, or water with fertilizer? Are there other types of water contaminants you can test with duckweed? Consult the Measuring Plant Growth page for tips on how to determine which duckweed is growing the most.
Cite This PageGeneral citation information is provided here. Be sure to check the formatting, including capitalization, for the method you are using and update your citation, as needed.
Science Buddies Staff. "Can Water Plants Be Used to Determine Water Quality?" Science Buddies, 28 July 2017, https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p030/plant-biology/water-quality-plants. Accessed 21 Sep. 2019.
Science Buddies Staff. (2017, July 28). Can Water Plants Be Used to Determine Water Quality? Retrieved from https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p030/plant-biology/water-quality-plants
Last edit date: 2017-07-28
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