Quick summary: In this activity students will explore the way soil and plants contribute to the purification of contaminated water in nature. Students conduct experiments to compare how successful soil and plants are in removing particulates from water by watering plants with contaminated water and assessing the filtered water for turbidity. This activity requires considerable preparation and resources but is simple and effective to run. This activity has been adapted from Scientist in Residence Program (scientistinresidence.ca).
- Students will learn soils and plants naturally filter and clean water before they enter the waterways.
- Students understand that stormwater from roads and homes as well as disturbed land is not filtered and can pollute waterways.
Australian Curriculum Mapping
Year 5 Science
- Decide which variable should be changed and measured in fair tests and accurately observe, measure and record data, using digital technologies as appropriate (ACSIS087)
- Compare data with predictions and use as evidence in developing explanations (ACSIS218)
Year 5 Mathematics
- Choose appropriate units of measurement for length, area, volume, capacity and mass (ACMMG108)
Year 6 Science
- Decide which variable should be changed and measured in fair tests and accurately observe, measure and record data, using digital technologies as appropriate (ACSIS104)
- Compare data with predictions and use as evidence in developing explanations (ACSIS221)
Year 6 Mathematics
- Connect volume and capacity and their units of measurement (ACMMG138)
Syllabus Outcomes: ST3-4WS, MA3-10MG, MA3-11MG, MA3-12MG, MA3-9MG, MA3‑1WM, MA3‑2WM, MA3‑3WM.
Year levels: 5 and 6
Indoor or outdoor activity: Indoor
Time required: 45 mins
Learning areas addressed: Science.
Level of teacher scaffolding: Lead students in activity.
Resources required: You will need different resources for teacher demonstrations, for group experiments and for each student. See next page for full list of resources required.
Homework and extension opportunities: This activity includes opportunities for extension.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.