Matter Review

2. A change in matter in which the arrangement of atoms are changed and an entirely new substance is formed.
5. Element with properties of metals and nonmetals.
10. Group of atoms bonded together.
15. Element that conducts heat and electricity poorly.
18. Particles are very close together.
21. The amount of mass per unit of volume.
22. Basic unit of an element.
24. Features of all matter that can be observed and measured without changing the chemical composition of the substance.
25. Substance has a definite volume but not a definite shape.

1. The property of a substance that is observed during a chemical change.
3. Element that is shiny and conducts heat and electricity.
4. Capable of being attracted by or acquiring the properties of a magnet.
6. Matter cannot be created or destroyed however matter can change forms, says this law.
7. A change in which only the appearance or form of matter changes and not its chemical properties.
8. Cannot be separated into simpler substance by physical or chemical means.
9. The amount of space something takes up.
11. Branch of science that deals with the properties, composition, and structure of elements and compounds, how they can change, and the energy that is released or absorbed when they change.
12. Particles collide very often.
13. A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds; cannot be physical separated.
14. Something that can flow freely and mix together easily.
16. The amount of matter in an object.
17. Representation of a chemical reaction in the form of symbols and formula.
19. Has definite volume but no definite shape.
20. Substance with only one type of particle.
23. The amount of mass in something.