UNL Science of Food Exam 1 Questions
And All Correct Answers.
Independent Variable - Answer A variable that is changing during the experiment
Controlled Variable - Answer A variable that stays exactly the same during an experiment
Dependent Variable - Answer A variable that is measured during the experiment
Data - Answer Info gathered during an experiment
Which of the following is false about the scientific method? - Answer Steps must be applied in order
A hypothesis: - Answer Must be proposed based off knowledge
Should be testable
Should be in the form of an if-then statement
Robert wants to see how sunlight affects plant growth. He takes two different types of plants. He puts
one of them in sunlight for 6 hours a day. After a week he measures the plants. What is the problem with
Robert's experiment? - Answer His constants are inadequate
Maintaining good notes about the procedures and results of an experiment: - Answer Allows others to
repeat it
Rules out the possibility that results may come from mistakes
Which of these should NOT be reworded as experimental data? - Answer Inferences
Before a final conclusion may be reached: - Answer Results must be organized
Experiments may have been repeated
, Calculations must be done to best estimate results
Reporting findings from research experiments allows others to build upon them. - Answer True
The scientific method should be only used for problems related to science. - Answer False
By the use of the scientific method, the data collected is always used to confirm the hypothesis. - Answer
False
The nucleus is the center of the atom, which contains most of the mass. - Answer True
The smallest part of an element that retains the properties of the element - Answer Atom
The number of protons in an element - Answer Atomic Number
The number of an atom with a positive charge - Answer Proton
A pure substance made up of two or more elements that are chemically bonded - Answer Compound
How many electrons does 15P have in the outermost shell? - Answer 5
When one calcium reacts with 2 chlorine, Ca (answer for a) two electrons and becomes a/an (answer for
b) and each Cl (answer for c) an electron becomes a/an (answer for d) - Answer Loses
Cation
Gains
Anion
All organic compounds contain: - Answer Carbon
And All Correct Answers.
Independent Variable - Answer A variable that is changing during the experiment
Controlled Variable - Answer A variable that stays exactly the same during an experiment
Dependent Variable - Answer A variable that is measured during the experiment
Data - Answer Info gathered during an experiment
Which of the following is false about the scientific method? - Answer Steps must be applied in order
A hypothesis: - Answer Must be proposed based off knowledge
Should be testable
Should be in the form of an if-then statement
Robert wants to see how sunlight affects plant growth. He takes two different types of plants. He puts
one of them in sunlight for 6 hours a day. After a week he measures the plants. What is the problem with
Robert's experiment? - Answer His constants are inadequate
Maintaining good notes about the procedures and results of an experiment: - Answer Allows others to
repeat it
Rules out the possibility that results may come from mistakes
Which of these should NOT be reworded as experimental data? - Answer Inferences
Before a final conclusion may be reached: - Answer Results must be organized
Experiments may have been repeated
, Calculations must be done to best estimate results
Reporting findings from research experiments allows others to build upon them. - Answer True
The scientific method should be only used for problems related to science. - Answer False
By the use of the scientific method, the data collected is always used to confirm the hypothesis. - Answer
False
The nucleus is the center of the atom, which contains most of the mass. - Answer True
The smallest part of an element that retains the properties of the element - Answer Atom
The number of protons in an element - Answer Atomic Number
The number of an atom with a positive charge - Answer Proton
A pure substance made up of two or more elements that are chemically bonded - Answer Compound
How many electrons does 15P have in the outermost shell? - Answer 5
When one calcium reacts with 2 chlorine, Ca (answer for a) two electrons and becomes a/an (answer for
b) and each Cl (answer for c) an electron becomes a/an (answer for d) - Answer Loses
Cation
Gains
Anion
All organic compounds contain: - Answer Carbon
