Across
- 4. the ability of a substance to burn or ignite in the presence of oxygen
- 5. a state of matter with no definite shape or volume, where particles move freely
- 6. the process by which a gas changes into a liquid
- 12. A characteristic of a substance that describes its ability to undergo a chemical change
- 14. a pure substance that cannot be broken down into simpler substances by chemical means
- 15. the process by which a liquid changes to a gas at temperatures below the boiling point
- 16. A mixture in which the components are not uniformly distributed and can often be seen with the naked eye, such as a salad
- 17. a substance formed by the chemical combination of two or more elements
Down
- 1. A process that produces one or more new substances with different properties
- 2. the amount of heat energy required to change a liquid into a gas at its boiling point
- 3. a method to separate solids from liquids or gases using a porous barrier
- 7. the lowest possible temperature where particles have minimal kinetic energy
- 8. a reaction or process that releases heat to the surroundings
- 9. the smallest unit of an element that retains its chemical properties
- 10. The temperature at which a liquid changes to a gas throughout the substance
- 11. a mixture where particles are dispersed but not dissolved, such as fog or milk
- 12. the ability of a material to allow the flow of heat or electricity
- 13. a reaction or process that absorbs heat from the surroundings