1. 1. Which pH indicates a neutral substance? A. 0 B. 7 C. 10 D. 14

2. 2. All the following result from a chemical reaction except A. the ashes from a fire B. a loaf of baked bread C. a melted cube of ice D. a rusted piece of metal

3. 3. Materials that allow the charges of an electric current to move freely through them are called A. insulators B. conductors C. resistors D. magnets

4. 4. The diagram above describes what happens in the process of photosynthesis. What are the products in this reaction? A.Water and sugar (carbohydrates) B.Sugar (carbohydrates) and carbon dioxide C.Oxygen and sugar (carbohydrates) D.Water and oxygen

5. 5. Which substance in the jar below is the least dense? Explain how you know. Use complete sentences and the RAP format.