Lymphatic Vessel Activity

Lymphatic vessel experiment in which students build a model from a straw, balloon, rubber band and water, squeeze the balloon like a contracting muscle and drop in sequins to watch how particles move.
Year groups
Years 5–11 (Key Stages 2–4)
Pages
1
File type
Microsoft Excel

Updated Oct 26, 2026

Subject
Human Body, Biology, Life Sciences, Science
Topic
Lymph, Lymphatic Vessel
Resource types
Activities

From the author

About this resource

Activity Introduction

An amazing activity designed for the students to learn how does the lymphatic vessel work.

The Lymphatic System

Your lymphatic system is part of your immune system. It produces and releases lymphocytes (a type of white blood cell) and other immune cells.

Lymphatic Vessel Experiment

The activity is designed to Elevate both eagerness for learning and researching skills for kids. Students will have fun experimenting how the lymphatic vessel works, while learning the importance of the lymphatic system.

Lymphatic Vessel

This friendly designed worksheet is suitable for students at school, homeschooling, and as a group activity.

Instructions

  1. Place the straw inside the balloon, then tie the rubber band around its tip.

  2. Put the balloon inside the glass, then slowly fill the straw with water until they are both filled.

  3. What you created now is a lymphatic vessel (the straw), a skeletal muscle (the balloon), and the lymph (water).

  4. Now squeeze the balloon to imitate a muscle contraction, then write down your notes.

  5. Drop some sequins into the straw. Those sequins represent glucose, amino acids, or infections.

  6. Watch the sequins sink, then write down your notes.

Materials Needed

Glass of water

Straw

Small balloon

Rubber band

Sequins

Format

Available in a PDF format.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Model how muscle contraction moves lymph through a lymphatic vessel

Skills covered

  • Scientific observation — noting what happens when the balloon is squeezed and when sequins are added

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