Matter Vocabulary

2. a simple substance that cannot be broken down into smaller parts or changed into another substance.
3. a characteristic of a substance that can be observed or measured without changing the identity of the substance
5. A chemical reaction that involves the release of energy in the form of heat or light
9. the amount of space occupied by a sample of matter
11. a substance that is present at the end of a chemical reaction
13. a measure of the average kinetic energy of the particles in an object
15. The substances which participate in a chemical reaction
16. the smallest unit into which matter can be divided without the release of electrically charged particles.
18. the energy which is stored in the bonds of chemical compounds (molecules and atoms)
20. the appearance or form of the matter changes but the kind of matter in the substance does not
21. a change of materials into another, new materials with different properties and one or more than one new substances are formed
23. a combination of two or more substances in any proportions

1. a characteristic of a particular substance that can be observed in a chemical reaction.
4. thermal energy transferred from a hotter system to a cooler system that are in contact.
6. any chemical reaction that absorbs heat from its environment.
7. a substance made up of two or more different chemical elements combined in a fixed ratio.
8. Anything that takes up space and can be weighed
10. the attraction of molecules for other molecules of the same kind
12. a link between atoms in molecules or compounds and between ions and molecules
14. a process in which one or more substances are converted to one or more different substances.
17. The smallest particle of a substance that has all the physical and chemical properties of that substance
19. a measure of the amount of matter in a substance or an object.
22. a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo