Across
- 3. The smallest part of an element that can exist and still retain the characteristics of that element.
- 4. Describe how one substance will react with another. In a chemical reaction the products are very different from the reactants. The physical properties of the products may be entirely different from the physical properties of the reactants.
- 6. A pure substance containing two or more elements united chemically. The molecules of the compound are all the same.
- 8. To change from a liquid to a gaseous state. The boiling point of water is 100¼C.
- 9. The force of attraction between the surface of unlike bodies such as a solid and a liquid.
- 10. An element or compound that enters into a chemical reaction.
Down
- 1. Those properties that can be associated with a physical change in a substance.
- 2. A pure substance in which all the atoms are the same. Hydrogen is an element for example
- 4. The force of attraction between the particles (molecules) of a substance.
- 5. A change in a substance where no new substances are formed though the substance, itself, takes on different characteristics;
- 7. A substance obtained from one or more other substances as a result of a chemical reaction.