PMA 2 Review

PMA 2 Review

Assessment

Flashcard

Science

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

2.

FLASHCARD QUESTION

Front

Where are electrons found in an atom?

Back

Electrons are found in the electron cloud surrounding the nucleus of an atom.

3.

FLASHCARD QUESTION

Front

Which state of matter has the largest space between molecules?

Back

Gas has the largest space between molecules compared to solids and liquids.

4.

FLASHCARD QUESTION

Front

What is a constant in an experiment?

Back

A constant is a factor that remains unchanged throughout the experiment, such as the test given to all classes.

5.

FLASHCARD QUESTION

Front

What is an outcome variable?

Back

The outcome variable is the variable that is measured or counted at the end of an experiment.

6.

FLASHCARD QUESTION

Front

What is the definition of a chemical symbol?

Back

A chemical symbol is a one or two-letter notation used to represent an element on the periodic table.

7.

FLASHCARD QUESTION

Front

What is the difference between a solid, liquid, and gas?

Back

Solids have closely packed molecules, liquids have more space between molecules, and gases have the most space between molecules.

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