Lungs versus Gills Experiments – Grade 9-11

Activity Introduction

Try out these two practical experiments making a model lung and a model gill to explore the breathing process in lungs compared to gills with your learners. Learners then answer questions on the experiments using the Learner Worksheets downloadable below.

Grade: 9-11

Resources Required: Activity Plan, printed Learner Worksheets. For the Lung Model experiment: A clear plastic bottle, two balloons, one straw, sticky tape, scissors. For the Gill Model experiment: Coffee filter or filter paper, jar or beaker, elastic band, ‘dirty’ water.

Key Concepts & Skills: Breathing processes in lungs compared to gills | Investigation, Creativity, Curiosity, Imagination, Reasoning

Duration: 2 x 1 hour sessions

Level of teacher facilitation: Moderate - High

Curriculum links: Natural Science (Grade 9 Term 1), Life Science (Grade 11 Term 3)

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