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\nStimulating Daphnia\n

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\nWe examine the effects of different temperatures and chemicals on the heart rate of Daphnia. A microscope is used to let us see the Daphnia\\u2019s heart and establish the heart rate under normal conditions. The heart rate is recorded...\nWe examine the effects of different temperatures and chemicals on the heart rate of Daphnia. A microscope is used to let us see the Daphnia\\u2019s heart and establish the heart rate under normal conditions. The heart rate is recorded again when cold water and then warm water is added. This is repeated with tea and with ethanol, to see how stimulants and depressants can affect heart rate. Biology - Human Body - Learning Points. Environmental factors, such as temperature and drugs, can affect the metabolism and nervous system of an animal. Any chemical that affects how the body functions can be considered a drug. A good ethical attitude is necessary when performing tests on live animals. Scientific methodology is important in order to generate valid and reliable data. A Twig Experiment Film. Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.\n
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Resource Details

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Curator Rating
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Educator Rating
Not yet Rated
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Media Length
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8:18
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Grade
6th - 12th
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nImagine Learning - Twig (middle years+)\n\n
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Date
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2012
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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heart rate, chemicals, temperature, water, time, metabolism, h2o, drugs
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Additional Tags

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daphnia, affects, stimulants, depressants, caffiene, alcohol, c2h6o, ethanol solution, weak tea, nervous system, ice water, heart, conditions, warm, temperatures, drop, animal, investigate, effects, microscope, examine, count, number, 10 seconds, multiply, beats, find, return, repeat, experiment, environment, means
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Classroom Considerations

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Best For: Explaining a topic
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\n\" data-title=\"Get Full Access\" data-container=\"body\" rel=\"popover\" tabindex=\"0\" aria-label=\"Play video: Stimulating Daphnia\" href=\"/subscription/new\">\"Stimulating\n\n
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