Across
- 1. Tiny plastic pieces smaller than 5 millimeters that can spread through water and enter the food chain
- 3. Strong synthetic material used to make vehicle seatbelts, jackets, and athletic gear
- 6. Describes a material that the body accepts as friendly without rejecting or attacking it
- 10. A material created by mixing two or more materials together to make a stronger, lighter part
- 13. Substances like synthetic oil that help moving machine parts rub less and reduce friction
- 16. Substances added to plastic to alter properties such as color, softness, or fire resistance
- 17. Responsible management of natural resources to minimize waste and care for creation
Down
- 2. A non-biodegradable synthetic fiber made from crude oil that sheds microfibers when washed
- 4. Special human-made materials built to work safely on or inside the human body
- 5. Process of sorting, washing, shredding, and remelting plastic items into new products
- 7. Quick-growing plant material that can replace plastic in some everyday products
- 8. Long molecular chains created in chemical plants by linking monomer building blocks
- 9. Plant-based natural material used to make sustainable wraps that dissolve in water
- 11. A starting natural substance that undergoes chemical change to form a new material
- 12. A material property where a substance stretches and then returns to its original shape
- 14. A heat-resistant synthetic fiber used to make fire-resistant gear for firefighters
- 15. High-strength synthetic fiber used in protective armor and safety gear
- 18. Dark liquid extracted underground that serves as the raw precursor for most plastics