Select the best response to the questions below.  For a printable version of the Pre-Test, click here. 1. Mass is best described as _______________________. A. how much an object weighs. B. how large an object is. C. how much matter is in an object. D. how much space an object occupies. E. how fast an object is moving. 2. 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. 3. Which of the following statements concerning measuring volume enables one to determine volume most directly? A. measuring volume only applies to fluids, such as water. B. measurements of volume can change due to changes in gravity. C. volume has three dimensions: length, width, & height. D. measurement of volume determines how much matter is in an object. E. volume has four variables: length, width, mass, & density 4. Using the metric system, mass is often measured in units of __________. A. grams. B. liters. C. grams/liter. D. ounces. E. pounds. 5. If you were to weigh a pencil on Earth, then weigh it again on the Moon, which of the following results would you expect? A. The mass of the pencil would decrease by 1/6 on the Moon as compared to Earth. B. The volume of the pencil would decrease by 1/6 on the Moon as compared to Earth. C. The mass of the pencil would decrease by 1/6 on the Moon, but the volume would remain unchanged. D. The volume of the pencil would decrease by 1/6 on the Moon, but the mass would remain unchanged. E. Neither the mass nor the volume of the pencil would change. 6. In order to measure the volume of a solid object you could: A. weigh it on a scale and covert grams into liters. B. immerse it in water and measure the amount of water it displaces. C. measure its temperature with a thermometer. D. determine how rapidly it falls from a known height. E. place it in a beaker and measure its volume by using the scale on the side of the beaker. 7. Which of the following solutions would have the highest concentration of sugar? A. one gram of sugar in one liter B. one milligram of sugar in one liter C. one kilogram of sugar in one liter D. one milligram of sugar in one milliliter E. one kilogram of sugar in one kiloliter 8. If gravity were to increase, ________________would also increase. A. mass B. weight C. volume D. size E. concentration 9. 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 500 L of pond, how much chemical does Billy need to add? A. 15 mg B. 1.5 g C. 15 g D. 16.7 g E. 167 g 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 he has 45 grams of the chemical, how much water can he treat? A. 15 L B. 150 L C. 1,500 L D. 15,000 L E. 150,000 L 11. Billy is treating a small fishpond with a chemical to neutralize pesticide contamination. Because of a dry winter, the volume of water in the pond is lower than it was the previous year. Billy added the chemical he needed to treat 1000-liters of pond water so that it contained 3 mg of chemical in 1 liter. But after adding the chemical he discovered that the pond water contained 4 mg of chemical in 1 liter. How much water was lost from the pond during the dry weather? A. 133 L B. 250 L C. 500 L D. 750 L E. 1333 L 12. Billy's little brother decides that he, too, can treat pond water. He dumps 500 g of chemicals in 500 L of pond water. If Billy were to measure the concentration of his brother's creation, what would it be? A. 0.5 mg/L B. 1 mg/L C. 5 mg/L D. 1 g/L E. 5 g/L 13. Billy determines that the chemical he is using to remove pesticides from pond water actually works better at a concentration of 5 mg of chemical in 1 liter of volume than a concentration of 3 mg of chemical in 1 liter as he used to use. If he has 1000-liter pond with 3 mg/ml, he needs to add about _________chemical to make the concentration 5 mg/L. A. 1 g B. 1.5 g C. 2 g D. 3 g E. 5 g