Lab: Predator-Prey Density: Butterwort

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Lab: Predator-Prey Density: Butterwort

Purpose: Determine effect of prey density on capture rate in Butterworts.
Materials Provided:
    2 Potted Butterworts
    2 clear cover domes
    wingless fruit flies
    Student directions and data sheet
Grade Level: 4-5 elementary, middle school, high school, undergraduate.

Butterworts at first don't seem to be carnivorous, but close examination of their leaves reveals their sticky nature. In fact butterworts can be quite adapt at capturing small prey.

In this inquiry investigation, students investigate the how crowding of prey affects the capture of prey. Students make observations, collect and graphically analyze data, make inferences, and draw conclusions. They end with a good understanding of butterwort prey capture in greater detail than simplying reading about it.

This series of carnivorous plant lab investigations is based on scientific inquiry standards of the National Science Education Standards, and are consistent with State Learning Objectives. Students have the opportunity to think and act like scientists during these investigations. Written and classroom tested by Michael Szesze, Awarding Winning Science Teacher.

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