1. What is Heart Burn? Does it really “burn”? Are there certain foods/ drinks that will make worse or better? What do you do if you have it?

2. Solutions a mixture of two or more substances that is identical throughout can be physically separated composed of solutes and solvents the substance in the smallest amount and the one that dissolves in the solvent the substance in the larger amount that dissolves the solute Colloids (milk, fog, jello) are considered solutions Iced Tea Mix (solute) Water (solvent) Iced Tea (solution) Salt water is considered a solution. How can it be physically separated?

7. Review pH is the measure of? 10 seconds for the next question…….. What do the letters pH stand for? (write it on your paper) What is the scale we use to measure pH? (volunteers for the board?) Identify how the H 3 + and OH - ions form naturally

9. Take a few minutes and answer the following question What is Heart Burn? Does it really “burn”? Are there certain foods/ drinks that will make worse or better? What do you do if you have it?

10. How does your body react when you introduce foods that are acidic and basic? Buffer: Is a substance that can resist a change in pH. They occur naturally in your body and can bind with an acid or base to neutralize them.