Across
- 2. plants that grow in winter
- 3. a flightless bird
- 5. increase in size on heating
- 6. cannot dissolve in water
- 10. hot molten magma
- 12. igneous rock
- 13. formed due to severe burns
- 16. rocks formed by sediments
- 17. an abiotic factor
- 18. device used for putting out fire
- 19. matter is made of tiny particles
- 20. insects breathe through
Down
- 1. used to fight diseases
- 4. liquids that dissolve in water
- 7. feared by farmers
- 8. lack of iron
- 9. give us energy
- 11. lighter than water
- 14. ability to blend with the surroundings
- 15. minerals from which metals are extracted