matter

6. change a change in size, shape, or state of matter in which the identity of the substance remains the same
7. mixture a mixture in which all parts are mixed together and different substances cannot be viewed within it, and they lose their original properties.
10. change a change from one substance to another
12. the smallest constituent unit of ordinary matter that has the properties of a chemical element.
13. any substance made up of only one type of atom
14. of conservation of mass the mass of all substances that are present before a chemical change (reactants), equals the mass of all of the substances that remain after the change (products)

1. mixture a mixture in which all parts can be clearly visible, and each part retains its own original properties.
2. property any characteristics of a material that you can observe without changing the identity of the substance
3. a type of matter with a fixed composition, it is all the same product
4. when two or more different types of atoms chemically combined
5. when the number of neutrons and protons have different amounts in the nucleus.
8. anything that has mass and takes up space
9. a heterogenous mixture with particles that never settle
10. property a characteristic of a material that you can observe that produces one or more new substances.
11. when two or more substances that are NOT chemically combined.