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Investigating Transpiration Lab Activity
Students use several techniques to investigate the location, methods, and mechanisms of transpiration in plants. Students first determine the source of water loss and confirm their findings with a qualitative chemical test. Then they prepare microscope slides of xylem in stem tissue, and prepare a leaf imprint using an innovative method that vividly highlights stomate structures. Finally, using WARD’S specially-designed potometer and supplied materials, students subject bean seedlings to varying environmental conditions to determine how transpiration is affected. You’ll get enough materials for eight setups, a teacher’s guide, and student copymaster.
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Ward's® Science Essentials® Dolomite
White to gray, medium to coarse-grained, crystalline.
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Ward's Science Essentials® Kaolin
Kaolin is a white clay mineral that has vast industrial uses
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Ward's Science Essentials® Bituminous Shale
Bituminous rich black shale for hands-on investigations.
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Ward's Science Essentials® Talc
Talc is the softest know mineral with a moh's hardness of 1, and composed of clay.
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Ward's® Science Essentials® Anorthosite
Anorthosite is an intrusive, igneous rock consisting of predominantly plagioclase feldspar.
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Ward's Science Essentials® Sandstone
Red clastic rock composed of sand sized particles and hematite.
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Ward's Science Essentials® Quartzite
Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.
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Ward's Science Essentials® Hornblende
Hornblende is a dark amphibole group mineral, perfect for teaching Bowen's reaction series.