Science
How does recycling work?
Recycling works by collecting used materials, sorting them by type, cleaning and processing them into raw material, and using that to make new products. It keeps resources in use and reduces waste, energy use, and pollution.
See it in motion.
Watch a 2-minute animated lesson that shows exactly how recycling works.
Step by step
- 1Used items are collected and sorted by material (paper, glass, metal, plastic).
- 2Each material is cleaned and broken down into raw form.
- 3That raw material is remade into new products.
- 4Not everything is recyclable, and contamination can spoil a batch.
Frequently asked questions
- What can be recycled?
- Commonly paper, cardboard, glass, metal cans, and many plastics — but rules vary by location.
- Why is recycling important?
- It saves raw materials and energy, cuts landfill waste, and reduces pollution and emissions.
- Why does contamination matter?
- Dirty or wrong items can ruin a whole batch, sending it to landfill instead.