PSSA Grade 8 Science Practice Questions - Pennsylvania System of School Assessment (PSSA) Grade 8 Science Exam - PSSA Grade 8 Science Practice Questions - Pennsylvania System of School Assessment (PSSA) Grade 8 Science Exam

Question 1

Which statement correctly describes the location and electrical charge of subatomic particles within an atom?

Protons are negatively charged in the nucleus, while electrons are positively charged in the electron cloud. Protons are positively charged and neutrons are neutral in the nucleus, while electrons are negatively charged outside the nucleus. Neutrons are positively charged in the nucleus, while protons and electrons are neutral in the outer shells. Electrons and protons are both inside the nucleus with neutral charges, while neutrons orbit outside.

Correct Answer:

Protons are positively charged and neutrons are neutral in the nucleus, while electrons are negatively charged outside the nucleus.

Question 2

The atomic number of an element on the periodic table represents which of the following?

The total number of protons in the nucleus of an atom The combined total number of protons and neutrons The total number of neutrons minus the number of electrons The average atomic mass of all naturally occurring isotopes

Correct Answer:

The total number of protons in the nucleus of an atom

Question 3

An atom of Carbon has an atomic number of 6 and contains 7 neutrons in its nucleus. What is the mass number of this Carbon isotope?

6 7 13 42

Correct Answer:

Question 4

Why are elements in Group 18 of the periodic table (the noble gases like Neon and Argon) extremely unreactive under normal conditions?

They have only one valence electron that is easily lost. Their outermost energy levels are completely full with 8 valence electrons. They contain no protons in their nucleus. They are all metallic solids that resist chemical changes.

Correct Answer:

Their outermost energy levels are completely full with 8 valence electrons.

Question 5

When a sodium atom (Na) reacts with a chlorine atom (Cl) to form table salt (NaCl), which process takes place?

Sodium and chlorine share a pair of electrons equally to form a covalent bond. Sodium gains an electron to become a negative ion, while chlorine loses an electron. Protons are transferred from the chlorine nucleus into the sodium nucleus. Sodium transfers its one valence electron to chlorine, forming positive (Na+) and negative (Cl-) ions that attract.

Correct Answer:

Sodium transfers its one valence electron to chlorine, forming positive (Na+) and negative (Cl-) ions that attract.

Question 1

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Prepare with the PSSA Grade 8 Science Practice Questions - Pennsylvania System of School Assessment (PSSA) Grade 8 Science Exam practice quiz. This question bank includes 100 questions covering student, water, cell, mass, and carbon. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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PSSA Grade 8 Science Practice Questions - Pennsylvania System of School Assessment (PSSA) Grade 8 Science Exam

This practice set contains 100 questions from the matching question bank and focuses on student, water, cell, mass, and carbon. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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PSSA Grade 8 Science Practice Questions - Pennsylvania System of School Assessment (PSSA) Grade 8 Science Exam

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