Sticky Snot

Source Institutions

Source Institutions

Add to list Go to activity
Activity link broken? See if it's at the internet archive
In this activity, learners create slime to model mucus and examine how it collects simulated particles. Mucus keeps particles from the environment out of our lungs when we breathe. Activity includes step-by-step directions for how to make the mucus mixture, suggested reflection questions, and the science behind the model. An activity video explains how to make the slime mixture and how mucus works. A Spanish version of the activity and video are also available.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
$5 - $10 per student

Age Range:
Ages 4 - 11

Resource Type:

English, Spanish

Materials List (per student)

  • Glue (Elmer’s preferred)
  • Laundry detergent (must contain some form of borate)*
  • Food coloring
  • Measuring cup
  • Measuring spoon(s)
  • Craft stick/spoon
  • Bowl
  • Large plate/flat surface
  • 4 Kitchen spices (e.g. ground cinnamon, dill, parsley, black pepper)
  • *NOTE: Wash your hands after completing the activity.
  • *NOTE: Adult supervision recommended


  • Life Sciences
    • Human Body
      • Respiration


Foreign language versions of this resource:

Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access



  • All rights reserved, California Science Center, 2021

Related Videos