| A | B |
|---|
| tough | not fragile |
| abrasion resistance | resistance to friction |
| thermal stability | resistance to temperature change |
| durable | long-lasting |
| heavy | opposite of lightweight |
| hard | opposite of soft |
| leather-like | similar to leather |
| water proof | resistant to water |
| spoiled | no longer appropriate for consumption |
| rust proof | resistant to rust |
| artificial | synthetic, not natural |
| sustainable | can be maintained over time |
| worn | used, damaged |
| environmentally friendly | good for the environment |
| environmentally unfriendly | bad for the environment |
| to come up with | to design |
| carbon footprint | amount of CO2 a product generates |
| an audit | an assessment, an evaluation |
| total impact | the total effect a product will have on the environment |
| cradle to grave | from production to disposal |
| compounds | combinations of materials |
| exotic | rare or complex |
| ferrous | made of iron and steel |
| ceramics | minerals transformed by heat |
| alloy | mixture of metals |
| non-metallic | not metal based |
| polymers | plastic materials |
| to store | to save |
| to recover | to obtain useful materials from waste |
| to reinforce | to make stronger |
| to generate | to create |
| heat soak | thermal absorption |
| to strip | to take off, to remove |
| low grade | low quality |
| high grade | high quality |
| pre-use phase | production of product |
| post-use phase | disposal or recycling |
| sealed | totally closed |
| efficient | performs effectively |
| enhanced | improved, better than before |
