Quiz Bowl Questions (Science)
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The document contains a series of science questions related to the scientific method, experiments, and principles of heat transfer and density. It challenges the reader to arrange steps of the scientific method, identify variables in experiments, and understand concepts such as acid rain's effect on plant growth and Newton's laws of motion. Additionally, it addresses misconceptions about chemical changes and physical properties of materials.
Quiz Bowl Questions (Science)
- 1. Questionsforquizbowl Suggestedquestionsforaverage round Science: 1. When scientists investigate, it is said that they follow the scientific method. How will you logically arrange the essential steps in the scientific method? 1. make a hypothesis 2. recognize the problem 3. formulate the simplest generalization 4. perform experiments to test the prediction 5. predict the consequences of the hypothesis a. 1, 4, 2, 3, 5 c. 2, 5, 1, 3, 4 b. 2, 1, 5, 4, 3 d. 3, 2, 1, 4, 5 2. In an experiment to determine whether or not the temperature of the water affects the rate at which salt dissolves, the independent variable is a. the amount of salt b. the temperature of the water c. the amount of water d. the rate at which salt dissolves 3. A mineral supplement designed to prevent the flu was given to two groups of people during a scientific study. Dosages of the supplement were measured in milligrams per day, as shown in the table. After 10 weeks, neither group reported a case of the flu. Which procedure would have made the outcome of this study more valid? a. test only one group with 200 mg of the supplement b. test the supplement on both groups for 5 weeks instead of 10 weeks c. test a third group that receives 150 mg of the supplement d. test a third group that does not receive the supplement 4. Acid rain can have a pH between 1.5 and 5.0. The effect of acid rain on the environment depends on the pH of the rain and the characteristics of the environment. It appears that acid rain has a negative effect on plants. To test the effect of pH on the early growth of bean plants in the laboratory, which of the following variables should be kept constant? i. bean plants ii. pH of water iii. the environment iv. amount of water a. i, ii, iii b. ii, iii, iv c. i, iii, iv d. ii and iv 5. The force that accelerates a rocket into outer space is exerted on the rocket by the exhaust gases. Which Newton’s law of motion is illustrated in this situation? a. First law of motion b. Second law of motion c. Third law of motion d. cannot be determined 6. When a cold spoon is put into a cup of hot coffee, the spoon heats up while the coffee cools down. Which of the following is implied by this observation? a. heat flows from a body with more thermal energy to a body with less thermal energy b. heat flows from a body with less thermal energy to a body with more thermal energy
- 2. c. heat flows from a body with low temperature to a body with high temperature d. heat flows from a body with high temperature to a body with low temperature 7. A metal pan heats up faster than an equal amount of water. Which of the following statements best explains this? e. metals are better conductors of heat than water f. metals are denser than water g. metals have lower specific heats than water h. metals have higher boiling points than water 8. Which of the following is true about volume and density when a metal is heated? VOLUME DENSITY a. increases increases b. decreases decreases c. increases decreases d. decreases increases 9. Which of the following is true about two identical pots, one filled with boiling water and the other an equal amount of lukewarm water, both left at room temperature? COOLS FIRST COOLS FASTER i. boiling boiling j. lukewarm lukewarm k. boiling lukewarm l. lukewarm boiling 10. The following describe chemical change except m. A chemical change takes place when a solid is changed to liquid then changed to gas n. For a chemical change to take place, heat, light, or electricity is either needed or given off. o. Some examples of chemical change are souring of milk, ripening of fruit, and digestion of food. p. In a chemical change, a new substance is formed, with chemical properties that are different from, the original substance.