Water Bugs

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Some bugs can walk on the surface of a lake, stream, river, pond or ocean. In this activity, learners will investigate surface tension of and how it prevents these bugs from sinking under the water’s surface. Learners will test how different substances affect surface tension using paper clips "bugs". Step-by-step instructions are included with photos along with safety recommendations. Activity guide includes a "What's going on?" explanation and relevant connections to water striders and the effects of pollution on aquatic life.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
$1 - $5 per group of students
Age Range:
Ages 8 - adult
Resource Types:
Activity, Model
Language:
English

Materials List (per group of students)

  • 4-6 small metal paper clips, 2.5-3.5 cm long (Do not use large or jumbo paper clips, or paper clips with ridges)
  • 3 bowls or wide-mouthed containers
  • Water
  • 1 handful of dirt, sand, or coffee grounds
  • Spoon
  • Liquid dishwashing detergent or liquid hand soap

Subjects

  • Earth and Space Science
    • Earth Structure
      • Oceans and Water
  • Engineering and Technology
    • Technology
      • Manufacturing
  • Life Sciences
    • Diversity of Life
      • Animals
    • Ecology
      • Ecosystems
      • Human Impact

Informal Categories

  • Nature and Environment

Audience

Learning styles supported:

  • Uses STEM to solve real-world problems
  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

Source Collection

  • DIY Science Apps

Rights:

  • , The Regents of the University of California, 2015

Funding Source:

  • National Science Foundation, DRL1114663