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Unit Test - Matter and Its Interactions

PS.8.1 Summative Assessment

Type
assessment
Grade Level
Grade 8
Duration
55 minutes
Questions
50

Description

A 50-question summative unit test covering atomic structure, classification of matter (elements, compounds, mixtures), periodic table organization, physical and chemical properties, physical and chemical changes, evidence of chemical reactions, endothermic and exothermic reactions, the Law of Conservation of Mass, balanced equations, open and closed systems, and photosynthesis as a real-world chemical reaction. Aligned to NC Standard Course of Study PS.8.1.

Learning Objectives

  • Model atomic structure including protons, neutrons, and electrons with correct locations, charges, and relative sizes.

  • Classify matter as elements, compounds, or mixtures based on particle arrangement models.

  • Analyze periodic table patterns (groups, periods, metals, nonmetals, metalloids) to predict element properties and reactivity.

  • Distinguish physical properties from chemical properties and identify examples of each.

  • Classify changes in matter as physical or chemical and identify evidence of chemical reactions.

  • Classify chemical reactions as endothermic or exothermic based on energy changes.

  • Explain the Law of Conservation of Mass and use balanced equations to show atoms are rearranged, not created or destroyed.

  • Compare open and closed systems and explain why mass may appear to change in an open system.

  • Apply knowledge of chemical reactions, reactants, products, and conservation of mass to the real-world process of photosynthesis.

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Assessment Questions

50 questions
1

How is matter defined in science?

Multiple Choice
2

What is the smallest particle of an element that still has the properties of that element?

Multiple Choice
3

What electrical charge does a proton carry?

Multiple Choice
4

What electrical charge does a neutron carry?

Multiple Choice
5

In which part of the atom are protons and neutrons found?

Multiple Choice
+ 45 more questions

Standards Alignment

PS.8.1
Understand the properties of matter and changes that occur when matter interacts in open and closed systems.
PS.8.1.1
Construct an explanation to classify matter as elements, compounds, or mixtures based on how the atoms are arranged in various substances.
PS.8.1.2
Use models to illustrate the structure of atoms in terms of protons, electrons, and neutrons (location, charges, comparative size) without isotopes, ions, and energy levels.
PS.8.1.3
Analyze and interpret data to explain how physical properties of elements and reactivity produced the current model of the Periodic Table of Elements.
PS.8.1.4
Construct an explanation to classify changes in matter as physical changes or chemical changes that are the result of a chemical reaction (including changes in energy, color, formation of a gas or precipitate).
PS.8.1.5
Use models to illustrate how atoms are rearranged during a chemical reaction so that balanced chemical equations support the Law of Conservation of Mass (in both open and closed systems).

Resource Details

Subject
Science
Language
EN-US
Author
Kris Tyte
License
CC-BY-4.0
PRISM ID
nc8-matter-interactions-unit-test

Usage

21
Views
0
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Keywords

matter atoms protons neutrons electrons elements compounds mixtures periodic table metals nonmetals metalloids physical change chemical change chemical reactions conservation of mass balanced equations endothermic exothermic photosynthesis PS.8.1

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