Matter And The Scientific Method
Chapter 1 quiz, you should take after reading the first chapter, and attending class on 09/01/08 . It will close after 09/02/08.
- 1.A summary of experimental data is a
- A.
Hypothesis.
- B.
Law.
- C.
Theory.
- D.
Prediction.
- E.
Datum.
- 2.Which of the following is a heterogeneous mixture?
- A.
Water
- B.
Tea
- C.
Root beer float
- D.
Vegetable oil
- E.
Vinegar
- 3.Which of the following processes does not represent a chemical change?
- A.
Iron rusting
- B.
Reaction of sodium metal with water
- C.
Leaves changing color
- D.
Souring of milk
- E.
Dissolving sugar in water
- 4.Which of the following is a compound?
- A.
Water
- B.
Iron
- C.
Milk
- D.
Sodium metal
- E.
Air
- 5.Which of the following is a solution?
- A.
Distilled water
- B.
Aspirin tablets
- C.
Table salt
- D.
gasoline
- E.
light
- 6.Which of the following is not an example of matter?
- A.
Wood
- B.
Air
- C.
Light
- D.
Atoms
- E.
Water
- 7.Which of the following is a mismatched definition?
- A.
Hypothesis—a prediction of phenomena
- B.
Experiment—a carefully controlled procedure conducted to test a theory
- C.
Data—facts obtained by experimentation
- D.
Compound—a mixture whose composition varies over a broad range
- E.
Element—a substance that is made up of atoms of only a single type
- 8.Which of the following processes does not represent a physical change?
- A.
Squeezing the juice from grapes
- B.
Distillation of an ethanol
- C.
Melting ice
- D.
Fermenting grape juice
- E.
Evaporating water
- 9.Which of the following does not represent a physical property?
- A.
Color
- B.
Hardness
- C.
Clarity
- D.
Melting point
- E.
Flammability
- 10.Which of the following does not represent a physical property?
- A.
Boiling point
- B.
Odor
- C.
Density
- D.
Solubility in water
- E.
Reaction with oxygen
- 11.Which word is inconsistent with scientific knowledge?
- A.
Testable
- B.
Reproducible
- C.
Provable
- D.
Explanatory
- E.
Tentative
- 12.Which of the following statements is false?
- A.
A theory provides explanations of observed natural phenomena.
- B.
A theory can be proven correct if sufficient experimental data is acquired.
- C.
A theory must be consistent with all known information.
- D.
Scientific laws are brief statements summarizing large amounts of scientific data.
- E.
A hypothesis is a tentative explanation or prediction which can be tested by experiment.
- 13.Which of the following does not represent a chemical property?
- A.
Burning of gasoline
- B.
Stability of gold
- C.
Rusting of iron in air
- D.
Shock sensitivity of nitroglycerin
- E.
Conductivity of electricity
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