Unit 3 Vocab

3. Anything that has mass and takes up space.
7. A change of matter from one form to another without a change in chemical properties
8. A one, two or three letter abbreviation of the name off an element
11. A characteristic of a substance that does not involve a chemical change, such as density, color or hardness
12. The amount of matter in an object.
14. A property of matter that describes a substance’s ability to participate in chemical reactions
15. Describes something that has a uniform structure or composition throughout
16. The ratio of the mass of a substance to the volume of the substance
17. A combination of two or more substances that are no chemically combined
18. The law that states that energy cannot be created or destroyed but can be changed from one form to another
20. A sample of matter, either a single element or a single compound that has definite chemical and physical properties
22. A substance that cannot be separated or broken down into simpler substances by chemical means

1. The number of protons in the nucleus of an atom
2. A subatomic particle that has a positive charge and is located in the nucleus of an atom
4. A change that occurs when one or more substances change into entirely new substances with different properties
5. The law the states that mass cannot be created or destroyed in ordinary chemical and physical changes
6. A subatomic particle that has no charge and is located in the nucleus of an atom
9. The smallest unit of an element that maintains the properties of that element
10. A substance made up of atoms of two or more different elements joined by chemical bonds
13. A subatomic particle that has negative charge
15. Describes something that done no have uniform structure of composition throughout
19. The amount of space that an object takes up.
21. A measure of the gravitational force on an object.