Grab and Go

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In this engineering activity, learners design and build a mechanical arm to lift a small item. Learners must follow certain design constraints as they build an arm that can lift a paper cup from one foot away.

Quick Guide

Preparation Time:
Under 5 minutes
Learning Time:
45 to 60 minutes
Estimated Materials Cost:
$5 - $10 per group of students
Age Range:
Ages 8 - 14
Resource Types:
Activity, Lesson/Lesson Plan
Language:
English, Spanish

Materials List (per group of students)

  • Styrofoam plates, Styrofoam trays, or craft foam
  • craft sticks, wooden dowels, or wooden skewers in varying sizes and lengths
  • plastic drinking straws
  • string
  • scissors
  • permanent markers
  • pencil and paper
  • rubber bands
  • tape
  • 8 oz. paper cup
  • ruler

Keywords

Subjects

  • Engineering and Technology
    • Engineering
      • Mechanical Engineering
  • Physical Sciences
    • Energy
      • Work and Machines
    • Motion and Forces
      • Machines
      • Gravity
      • Center of Gravity
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
  • The Nature of Technology
    • The Design Process
      • Research and Development
      • Invention and Innovation
      • Problem Solving
      • Troubleshooting and Maintenance

Audience

To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

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

Culture, ethnicity, and gender

  • Girls

    • Explicity developed for this group
    • Acknowledges this group's contributions to STEM
    • Highlights STEM opportunities for this group
    • Identifies role models or mentors in STEM fields from this group
    • Uses inclusive images of people from this group

Other

Foreign language versions of this resource:

Components that are part of this resource:

Includes alignment to state and/or national standards:

This resource is part of:

Access Rights:

  • Free access

By:

Rights:

  • All rights reserved, Twin Cities Public Television, Inc., 2013

Funding Sources:

  • National Science Foundation, DRL-1114739
  • L'Oreal USA For Girls in Science
  • Northrop Grumman Foundation
  • PPG Industries Foundation