Properties of matter

1. A substance that increases the hydrogen ion concentration of a solution.
6. The curved surface of a liquid in a tube.
7. The elastic tendency of a fluid surface that makes it acquire the least surface area possible.
9. The degree of compactness of a substance, typically measured in mass per unit volume.
10. The gradual destruction of materials (usually metals) by chemical reaction with their environment.
14. A substance that decreases the hydrogen ion concentration in a solution.
16. Action The ability of a liquid to flow in narrow spaces without the assistance of external forces.
17. Having the properties of an alkali; having a pH greater than 7.
18. The amount of space that a substance or object occupies.
19. Having an acidic taste; opposite of sweet.
20. A substance that changes color to indicate the presence of some ion or substance.

2. The action or property of molecules sticking together, being mutually attractive.
3. A method used to measure the volume of an irregularly shaped object by observing the amount of water it displaces.
4. A measure of the amount of matter in an object, typically measured in grams or kilograms.
5. A small drop of water, often formed by condensation.
8. Having a sharp, pungent taste or smell; not sweet.
11. Having a pH of 7; not acidic or alkaline.
12. A scale used to specify the acidity or basicity of an aqueous solution.
13. The ratio of the density of a substance to the density of a given reference material.
15. The tendency of dissimilar particles or surfaces to cling to one another.