In Order for a Study to Be Experimental It Must

question 56

Multiple Choice

In order for a study to be experimental it must include

• A) one assigned variable.
• B) one assigned variable and one active variable.
• C) one active variable.
• D) two or more active variables.

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Definitions:

Chlorine

A chemical element with symbol Cl and atomic number 17, a reactive halogen that is used as a disinfectant and in the manufacture of a wide range of products.

Sodium

A chemical element with symbol Na and atomic number 11, known for its role in nerve impulse transmission and muscle contraction.

Covalent Compound

A compound in which atoms are held together by covalent bonds; covalent compounds consist of molecules. Compare with ionic compound.

Methane

A colorless, odorless gas, CH4, that is the simplest alkane and a major component of natural gas, contributing to greenhouse gas emissions.