Across
- 2. Short molecules that join together to make polymers
- 4. When oxygen is lost from a compound
- 9. How the sun heats up the Earth
- 12. How a radiator heats up a room
- 13. Substance in cell walls
- 14. Genetic condition resulting in extra fingers or toes
- 15. Method used to extract tin from its ore
Down
- 1. Plastic used in plastic bags
- 3. Movement of heat energy through a solid
- 5. When a metal is found uncombined in nature
- 6. Least reactive metal in the reactivity series
- 7. Common name for synthetic polymers
- 8. Method used to extract sodium from its ore
- 10. A space with no particles
- 11. Short section of DNA