Select the best answer for each question.  To print the Post-Test, click here. 1. Volume is best described as ___________________________. A. how much an object weighs. B. how much matter is dissolved in water. C. how much matter is in an object. D. how much space an object occupies. E. how fast an object is moving. 2. The mass of an object is dependent upon its ______________. A. gravity. B. volume. C. matter. D. heat. E. energy. 3. Which of the following statements concerning concentration is true? A. Concentration is equal to gravity times mass. B. Concentration is how much matter is in a given volume. C. Concentration is equal to matter times volume. D. Concentration is how much mass is present at a given gravity. E. Concentration is equal to gravity times volume. 4. In order to determine concentration you would need to know _________and_________ . A. mass; volume B. mass; gravity C. volume; gravity D. volume; weight E. mass; weight 5. Using the metric system, volume is often measured in units of __________. A. grams. B. liters. C. grams/liter. D. ounces. E. pounds. 6. Which of the following methods could you use to measure the mass of an object? A. placing it on a balance B. placing it in a beaker C. measuring it with a ruler D. immersing it in water E. using a thermometer 7. Which of the following would have the lowest concentration of sugar? A. one gram of sugar in one liter B. one milligram of sugar in one milliliter C. one kilogram of sugar in one liter D. one gram of sugar in one milliliter E. one milligram of sugar in one liter 8. If gravity were no longer present, an object would no longer have _________. A. volume B. mass C. size D. weight E. concentration 9. Which of the following is a measure of mass in the metric system? A. kilograms. B. liters. C. pints. D. ounces. E. pounds. 10. Billy is treating a small fishpond with a chemical to neutralize pesticide contamination. To be effective, the concentration of the chemical needs to be 3 mg of chemical in 1 liter of volume. If Billy has 100 g of the chemical, how much pond water can he treat? A. 300 ml B. 333 ml C. 3.33 l D. 33.3 l E. 300 l 11. Billy is treating a small fishpond with a chemical to neutralize pesticide contamination. To be effective, the concentration of the chemical needs to be 3 mg of chemical in 1 liter of volume. If he wants to treat 1500 L of pond water, how much chemical does Billy need to add? A. 45 mg B. 4.5 g C. 45 g D. 50 g E. 500 g 12. Billy is treating a small fishpond with a chemical to neutralize pesticide contamination. To be effective, the concentration of the chemical needs to be 3 mg of chemical in 1 liter of volume. Unfortunately, Billy was distracted while treating the 1000-liter pond and ended up adding too much chemical. He measures the concentration to be 8 mg of chemical in 1 liter. How much of the chemical did Billy add? A. 8 mg B. 80 mg C. 8 g D. 80 g E. 8 kg 13. Billy's little brother decides that he, too, can treat pond water. He dumps 100 g of sugar in 500 L of pond water. If Billy were to measure the concentration of his brother's creation, what would it be? A. 0.1 mg/L B. 0.2 mg/L C. 1 mg/L D. 0.2 g/L E. 1 g/L