Unit 3 Vocab

2. A characteristic of a substance that does not involve a chemical change, such as density, color or hardness
5. Describes something that has a uniform structure or composition throughout
8. Describes something that done no have uniform structure of composition throughout
10. The law the states that mass cannot be created or destroyed in ordinary chemical and physical changes
13. The ratio of the mass of a substance to the volume of the substance
16. A property of matter that describes a substance’s ability to participate in chemical reactions
17. A subatomic particle that has negative charge
18. A sample of matter, either a single element or a single compound that has definite chemical and physical properties
19. A change that occurs when one or more substances change into entirely new substances with different properties
21. The amount of matter in an object.
23. A substance that cannot be separated or broken down into simpler substances by chemical means

1. A subatomic particle that has a positive charge and is located in the nucleus of an atom
3. The law that states that energy cannot be created or destroyed but can be changed from one form to another
4. The amount of space that an object takes up.
6. A change of matter from one form to another without a change in chemical properties
7. A one, two or three letter abbreviation of the name off an element
9. A substance made up of atoms of two or more different elements joined by chemical bonds
11. A subatomic particle that has no charge and is located in the nucleus of an atom
12. A combination of two or more substances that are no chemically combined
14. Anything that has mass and takes up space.
15. The number of protons in the nucleus of an atom
20. The smallest unit of an element that maintains the properties of that element
22. A measure of the gravitational force on an object.