Across
- 3. Wood is a ___________ substance
- 4. Material that allow light to pass through them only partially
- 7. Material which can be compressed easily
- 8. Iron nail _________ in water
- 9. Materials have bumps on their surfaces
- 10. Glass is a ___________ material
- 11. sorting materials according to their similarities and dissimilarities
- 14. Materials do not have bumps
- 19. Substances that completely dissolve in water
- 20. Objects are made from
- 21. Light materials _________ in water
Down
- 1. The process of placing similar things together
- 2. Insoluble gas
- 5. Materials are dull in appearance
- 6. It is a shine on the surface of all metals
- 12. Substance which do not dissolve in water
- 13. liquids that are insoluble in water
- 15. Gas which dissolve in water
- 16. Material which are difficult to compress
- 17. Immiscible liqiud
- 18. The liquid which get mixed with water completely