E-Waste!
What is e-waste?
Discarded electronic devices and their components.
What is composting?
The breakdown of organic materials by microorganisms under suitable conditions.
Identify two commonly recyclable materials.
Metal cans, paper, glass, or certain plastics.
What is the primary purpose of a modern landfill?
To contain waste and manage pollution.
What are the three main waste management pathways covered in class?
Landfilling, recycling, and composting.
Identify two environmental benefits of recycling electronic waste.
Reduced demand for mining and reduced total waste.
Name three commonly compostable materials.
Food scraps, coffee grounds, and lawn trimmings.
A clean plastic container has a recycling symbol, but your city's recycling program does not accept that type of plastic. Should you recycle it? Explain.
No. Local recycling systems must be able to accept and process the material.
What is a waste cell?
A section of compacted waste.
What three characteristics describe materials classified as trash?
Unrecyclable, unrecoverable, and non-compostable.
Identify three valuable metals recovered from electronic waste.
Copper, aluminum, steel, gold, or silver.
Why is composting preferable to sending organic waste to a landfill?
It transforms organic waste into useful soil material rather than storing it in a landfill.
Identify two reasons recyclable materials might end up in landfills.
Contamination, incorrect sorting, limited processing capacity, or low market value.
What is leachate, and what landfill component helps prevent it from contaminating groundwater?
Contaminated liquid released from waste; a liner helps prevent contamination.
Give two examples of materials that generally belong in compost rather than a landfill.
Food scraps and lawn clippings.
Identify two benefits and two negative consequences of recycling electronic waste.
Benefits: jobs and valuable metal recovery. Consequences: toxic exposure and air pollution.
True or false: Biodegradable materials have little environmental impact because they naturally decompose. Explain.
False. Decomposition requires appropriate conditions, and organic waste can generate harmful emissions in landfills.
Arrange these recycling stages in order: sorting, new product, collection, material breakdown, manufacturing raw material.
Collection → Sorting → Material breakdown → Manufacturing raw material → New product.
Identify two gases collected by landfill gas control systems (think greenhouse gas effect!)
Methane and carbon dioxide.
Why might two cities manage the exact same piece of waste differently?
Their waste management systems may have different recycling and composting capabilities.
Explain how recycling electronic waste can create environmental and social problems despite recovering valuable resources.
Unsafe recycling practices can produce pollution and expose workers to toxic substances, particularly in less wealthy communities.
One student recycles 100 disposable water bottles. Another uses a single reusable bottle 100 times. Which approach follows the waste management hierarchy, and why?
The reusable bottle because reducing waste and reusing products take priority over recycling.
What do the arrows and numbers printed on plastic products identify?
The type of plastic, not whether it can be recycled locally.
Why might sending compostable food waste to a modern landfill contribute to environmental problems?
Organic waste can decompose and release methane, contributing to greenhouse gas emissions.
A school throws away cardboard, food scraps, and contaminated plastic packaging together. Explain how each material should be managed.
Recycle clean cardboard, compost food scraps, and landfill unrecyclable contaminated packaging.