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End of Chapter 1 Quiz Question 1: Which of the following statements about soda pop is FALSE? A Soda pop is a chemical mixture of mostly sugar, water and carbon dioxide. B The molecules important to fizzing are carbon dioxide and water. C The carbon dioxide is forced to mix with the water by the presence of sugars. D When a can is opened, the pressure release allows carbon dioxide to form bubbles. E All of the above statements are true. Question 2: Which of the following items does NOT contain chemicals? A drain cleaner B organically grown vegetables C air D insecticides E All of the above contain chemicals Question 3: A good definition of chemistry is: A the science that seeks to understand what matter does by studying what atoms and molecules do. B the science that seeks to understand what living organisms do by studying the molecules that make up the organism. C the science that seeks to understand what the universe does by studying interactions of molecules with atoms. D the science that seeks to understand the interactions of molecules for the sake of advancing human control over nature. E none of the above Question 4: Which statement about the scientific method is TRUE? A The scientific method emphasizes reason as the way to understand the world. B The scientific method emphasizes observation and reason as the way to understand the world. C The scientific method emphasizes observation and experimentation as the way to understand the world. D The scientific method emphasizes scientific laws as the way to understand the world. E All of the above statements are false. Question 5: Which of the statements below is NOT part of the scientific method? A observation and measurement B formation of a hypothesis C testing of a hypothesis by experimentation D refinement of a hypothesis as needed E All of the above steps are part of the scientific method. Question 6: Which statement about a hypothesis is TRUE? A It is a tentative interpretation or explanation.

B It has the potential to be proven wrong. C It can be tested by experiments. D It is part of the scientific method. E All of the above statements are true. Question 7: The definition of a scientific law is: A the same as a hypothesis. B a way of learning that emphasizes observation and experimentation. C the underlying reason for a scientific theory. D a number of a similar observations generalized into a brief statement summarizing past observations and predicting new ones. E none of the above Question 8: What term best describes a brief statement that summarizes many past observations and predicts new ones? A experiment B hypothesis C scientific law D theory E none of the above Question 9: Who discovered the law of conservation of mass? A John Dalton B Antoine Lavoisier C Nivaldo Tro D John Dalton and Antoine Lavoisier E none of the above Question 10: Which of the following is an example of a scientific law? A All matter is composed of small, indestructible particles called atoms. B In a chemical reaction, matter is neither created nor destroyed. C When a can of soda pop is opened, a fizzing sound is heard. D Flammable objects contain phlogiston. E none of the above Question 11: What is the definition of a scientific theory? A a brief statement that summarizes past observations and predicts future ones B a model that explains the underlying reasons for observations and laws C the equivalent of a scientific opinion which others may disagree with D a method of learning that emphasizes reason as the way to understand the world E none of the above Question 12: Who discovered the atomic theory? A John Dalton

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