User login


Slowing the Flow


Source Institutions

    American Museum of Natural History

Add to listGo to activity
Slowing the Flow

In this experiment, pairs of learners explore how cold water affects circulation. The mammalian diving reflex (MDR) slows circulation when the body is exposed to cold water. Learners measure their pulse on their neck and wrist before and after they place their face in icy water to discover how the mammalian diving reflex works. For safety reasons, this activity requires adult supervision.

Quick Guide


Preparation Time:
Under 5 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
free

Age Range:
Ages 8 - 18

Resource Types:
Activity, Experiment/Lab Activity

Language:
English

Materials List (per group of students)


  • a watch or clock with a second hand
  • a bucket or large bowl of water, chilled with ice cubes
  • several towels
  • sheet of paper to make chart
  • pen or marker

Subjects


  • Life Sciences
    • Diversity of Life
      • Animals
    • Human Body
      • Circulation
  • Mathematics
    • Data Analysis and Probability
      • Data Analysis
      • Data Collection
      • Data Representation
    • Measurement
      • Rate
  • Physical Sciences
    • Heat and Thermodynamics
      • Heat and Temperature
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
      • Communicating Results

Informal Categories


  • Animals
  • Sports and Exercise

Audience


To use this activity, learners need to:

  • see
  • read
  • touch

Learning styles supported:

  • Involves teamwork and communication skills
  • Involves hands-on or lab activities

Other


Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access

By:

Source Collection:

  • Ology

Rights:

  • All Rights Reserved, American Museum of Natural History,

Share


User Lists


This resource is part of these lists: