1. Solution A uniform mixture that contains a solvent and at least one solute

2. Solvent Part of a solution present in the largest amount

3. Solute The substance that is present in a solution in a smaller amount and is dissolved by the solvent

4. Dilute solution Has only a little solute dissolved in an amount of solvent

5. Concentrated solution Has a lot of solute dissolved in an amount of solvent

6. Saturated solution When the solution cannot dissolve any more solute

7. Acid Compounds whose characteristic properties include the kinds of reactions they undergo

8. Corrosive To wear away other materials

9. Indicator A compound that changes color when in contact with acid or a base

10. Base Another group of compounds that can be identified by common properties

11. Hydrogen ion An atom of hydrogen that has lost its electron

12. Hydroxide ion A negative ion made of oxygen and hydrogen

13. pH scale A range of values from 0 to 14, it expresses the concentration of hydrogen ions in a solution

14. Neutralization A reaction between an acid and a base

15. Salt Any ionic compound that can be made form the neutralization of an acid with a base

16. Organic compound Compounds that contain carbon

17. Hydrocarbon Compounds that contain the elements carbon and hydrogen

18. Saturated hydrocarbon A hydrocarbon that is classified when having only single bonds

19. Unsaturated hydrocarbon A hydrocarbon that has double or triple bonds

20. Alcohol A substituted hydrocarbon that contains one or more hydroxyl groups

21. Polymer A large molecule made of a chain of many smaller molecules bonded together

22. Protein Formed from smaller molecules called amino acids

23. Amino acid A monomer that is a building block of proteins

24. Carbohydrate An energy-rich organic compound made of the elements carbon, hydrogen, and oxygen.

25. Glucose One of the most important sugars in the body

26. Starch The complex carbohydrate

27. Cellulose Used for plants to build strong stems and roots

28. Lipid Energy-rich compounds made of carbon, oxygen, and hydrogen

29. Fatty acid Fats an oils are made from fatty acid

30. Cholesterol An important lipid that is found in all animal cells.

31. Nucleic acid Very large organic molecules made of carbon, oxygen, hydrogen, nitrogen, and phosphorus.