Students will explore the environmental issue of plastic pollution in oceans and apply the engineering design process to create a prototype for a device that helps remove plastic waste from water. Thi
Concepts at a Glance
Understand the impact of plastic pollution on marine ecosystems.
Learn about current methods and technologies for cleaning plastic from the ocean.
Use the engineering design process to brainstorm, design, and prototype a plastic-cleaning device.
Curriculum Connections
7
Science
First People’s knowledge of changes in biodiversity over time
Evidence of climate change over geological time and the recent impacts of humans
Change in climate affects: the interconnectedness of plants and animals and their environment.
e.g., changes to harvesting dates, changes to schedules due to early/later ripening and runs, lowered water levels in creeks, rivers and lakes, change in humidity impacts the ability to preserve salmon, etc.
8
Science
The relationship of micro-organisms with living things.
Microorganisms are key to nutrient recycling in eco-systems as they act as.
9
Science
Matter cycles within biotic and abiotic components of ecosystems.
Human impacts on sources and sinks (e.g., climate change, deforestation, agriculture, etc.)
Bioaccumulation and biomagnification.
Sustainability of systems
A systems approach to sustainability sees all matter and energy as interconnected and existing in dynamic equilibrium.
Materials
Paper
Rubbermaid bins
Small bits of plastics / trash
Pipe cleaners
String
Pool noodle or other floatation
Netting
Popsicle sticks
Cotton balls
Other random engineering materials
Activity Instructions
Brainstorming and Planning (20 minutes):
In small groups, students brainstorm ideas for a device that can remove plastic from the ocean.
Students sketch their designs and identify the materials and mechanisms their prototype will use.
Prototype Creation (30-40 minutes):
Students build their prototypes using materials like recycled items, straws, pipe cleaners, string, and small motors (optional).
Ensure students follow the design cycle: build, test, improve.
Testing and Iteration (20 minutes):
Students test their prototypes in a small tub of water containing floating plastic pieces (e.g., bottle caps, straws).
Groups analyze what works and what can be improved, then make adjustments to their designs.
