Across
- 4. is considered as the fourth phase of matter
- 9. is a measure of the resistance of a liquid to flow
- 11. is the ratio of mass per unit volume
- 13. it is used as an alternative to argon in the light bulbs
- 15. is the ability to flow
- 16. tension is the energy required to increase the surface area of a liquid by a given amount.
- 17. gases do not have definite volume
- 20. it is used for protection from nuclear disasters
Down
- 1. are two substances that are mixed together physically
- 2. solid is one in which particles are not arranged in a regular or repeating pattern
- 3. liquid to gas
- 5. is the force of attraction between different molecules
- 6. is the force of attraction between identical molecules
- 7. is anything that takes up space and has mass
- 8. individual pieces of crystalline solids
- 10. solid to liquid
- 12. molecules are in continuous motion and frequently strike the walls of its container
- 14. it is the most important component of alloys
- 18. it is the most widely occurring elements on earth
- 19. it is the fifth most abundant chemical element in the universal scale