How Big Were the Dinosaurs?

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In this activity (located on page 4 of PDF), learners gain insight into the actual size of dinosaurs and practice making estimations and measurements. Learners measure the lengths of various dinosaurs by measuring lengths of string in field or gym. Learners also estimate and measure these lengths by lying head to foot. Learners also compare and contrast the sizes of different dinosaur species. [Activity is publicly available through a web crawler capture on]

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
1 cent - $1 per group of students

Age Range:
Ages 6 - 11

Resource Types:
Activity, Lesson/Lesson Plan


Materials List (per group of students)

  • Tape measure or yard stick
  • String
  • Tape
  • Chart paper or chalkboard
  • Markers or chalk
  • Books and research materials about dinosaurs


  • Earth and Space Science
    • Earth's History
      • Dinosaurs
  • Life Sciences
    • Diversity of Life
      • Animals
    • Ecology
      • Biodiversity
  • Mathematics
    • Measurement
      • Units of Measurement
      • Size and Scale
  • The Nature of Science
    • The Scientific Process
      • Asking Questions
      • Conducting Investigations

Informal Categories

  • Animals
  • Outdoor Activity
  • Physical Activity


To use this activity, learners need to:

  • see
  • read
  • be mobile
  • touch

Learning styles supported:

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


Includes alignment to state and/or national standards:

Access Rights:

  • Free access



  • All rights reserved, Chicago Children's Museum, 2011