Biology PRAXIS Study

What is the term used for recorded observations in scientific inquiry?

• Hypothesis

• Theory

• Data

• Experiment

Which type of reasoning is used to draw logical conclusions from a large number of observations?

• Deductive reasoning

• Hypothetical reasoning

• Inductive reasoning

• Theoretical reasoning

What is a null hypothesis?

What type of data falls into categories and may be ranked or unranked?

• Continuous data

• Qualitative data

• Discrete data

• Variable data

What is the term for a variable whose value is manipulated or changed during an experiment to reveal possible effects on another variable?

• Dependent variable

• Independent variable

• Constant variable

• Control variable

What must a hypothesis be in order to be considered scientific?

• Broad and general

• Testable and falsifiable

• Repeatedly tested and not rejected

• Accepted as fact

What is an element in terms of chemistry?

• A group of atoms bonded together

• A species of atoms having the same number of protons in their atomic nuclei

• A mixture formed when two or more substances are combined

• An atom or molecule with a net electric charge

What defines a compound?

Tags

NGSS.MS-PS1-1

Which of the following best describes a molecule?

• The basic unit of a chemical element

• A species of atoms having the same number of protons in their atomic nuclei

• A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound

• An atom or molecule with a net electric charge due to the loss or gain of one or more electrons

Tags

NGSS.MS-PS1-1

What is an ion?

• The basic unit of a chemical element

• A species of atoms having the same number of protons in their atomic nuclei

• A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound

• An atom or molecule with a net electric charge due to the loss or gain of one or more electrons