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Activity Description of "Pressing Limu"

Title Pressing Limu
Audience biology - all levels
Abstract Limu is the Hawaiian term for algae or seaweed. All limu in Hawaii are edible but flavors and textures vary greatly. Scientists collect and press plant specimens to use for reference and study. Scientists have a procedure for pressing and identifying plants. A collection of pressed specimens is called an herbarium. Algae are aquatic plants, therefore, the pressing process requires that the specimens be submerged in water. Pressing and drying can be done easily, even at home with readily available resources such as newspaper, waxed paper, and several heavy books. This activity uses the basic algae pressing techniques but, instead of selecting only one type of algae per sheet, you may create a collage of seaweeds by arranging a few different types on one sheet. This, then, can become a notecard, a paperweight, or can be framed.
Author Esther Shigezawa
Email shigezaw@hawaii.edu
Unifying Concept Form and function
Science and Technology Understandings about science and technology
Science as Inquiry Abilities necessary to do scientific inquiry
History and Nature of Science Science as a human endeavor, Historical perspectives
Science in Personal and Social PerspectivesNatural resources, Science and technology in local, national, global challenges
Life, Physical, Earth Sciences Structure and function in living systems, Diversity and adaptations of organisms
Other Standards

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