1. Which of the following could be an observation in an investigation? A.Not all ceramics can conduct electricity B.The new ceramic does not conduct electricity. C.By adding iron powder, ceramics can be made to conduct electricity. D.At high temperatures, the new ceramic will probably conduct electricity. #1

2. Which of the following could be an observation in an investigation? B. The new ceramic does not conduct electricity. #1

3. A scientist wants to add a particular volume of sulfuric acid to a beaker. Which of the following would be the best measuring instrument to use? A.Balance B.Test tube C.Scale D.Graduated cylinder #2

4. A scientist wants to add a particular volume of sulfuric acid to a beaker. Which of the following would be the best measuring instrument to use? D. Graduated cylinder #2

5. Gerald wants to find out how temperature affects the volume of a liquid. Which pieces of equipment will he need? A.Graduated cylinder and beaker B.Thermometer and meter stick C.Thermometer and pan balance D.Graduated cylinder and thermometer #3

6. Gerald wants to find out how temperature affects the volume of a liquid. Which pieces of equipment will he need? D. Graduated cylinder and thermometer #3

7. Which of these best defines mass? A.The amount of space occupied by an object B.The distance between two points C.The quantity of matter in an object D.The interval between two events #4

8. Which of these best defines mass? C. The quantity of matter in an object #4

9. Which of the following is a statement about something that happens in nature which seems to be true all of the time? A.theory B.Scientific law C.hypothesis D.conclusion #5

10. Which of the following is a statement about something that happens in nature which seems to be true all of the time? B. Scientific law #5

11. Students drop objects from a height and measure the time it takes each to reach the ground. What is the dependent variable in this experiment? A.Falling time B.shoe C.Drop height D.paper #6

12. Students drop objects from a height and measure the time it takes each to reach the ground. What is the dependent variable in this experiment? A.Falling time #6

13. Which statement about elements is FALSE? A.All atoms in an element are alike B.There are about 1,000 elements found in nature C.Some elements have been made in laboratories D.Zinc, copper, and iron are elements. #7

14. Which statement(s) about elements is TRUE? A.All atoms in an element are alike C. Some elements have been made in laboratories D. Zinc, copper, and iron are elements. #7

15. CaCO 3 is an example of which type of material? A.element B.mixture C.compound D.colloid #8

16. CaCO 3 is an example of which type of material? C. compound #8