Accuracy is defined as

How close your results are to the desired value

How repeatable your results are

How close your results are to one another

Precision is defined as

How close your results are to one another

How close your results are to the desired value

How repeatable your results are

Which phrase describes an atom?

a positively charged nucleus surrounded by negatively charged electrons

a negatively charged nucleus surrounded by positively charged electrons

a positively charged nucleus surrounded by negatively charged protons

a negatively charged nucleus surrounded by positively charged protons

An area of high probability for finding an electron

A circular path which electron travel around the nucleus

a subatomic particle found outside the nucleus

Chemistry Midterm - Practice Test

Quiz

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Chemistry

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11th Grade

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Practice Problem

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Medium

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NGSS

MS-PS1-1, HS-PS1-1, MS-PS1-2

Standards-aligned

Michelle Flowers

Used 1K+ times

FREE Resource

About this resource

This quiz covers foundational chemistry concepts essential for high school students in grade 11. The content spans three major areas: matter and its properties, measurement and mathematical skills in chemistry, and atomic structure with periodic trends. Students must understand the fundamental distinctions between pure substances and mixtures, recognize physical versus chemical changes, and classify matter based on composition and properties. The quiz also assesses critical laboratory skills including significant figures, scientific notation, unit conversions, density calculations, and the concepts of accuracy and precision. Additionally, students need to demonstrate knowledge of atomic theory, including the structure of atoms, subatomic particles, isotopes, ions, electron configurations, and periodic table organization. These concepts form the essential foundation that students must master before advancing to more complex topics like chemical bonding and stoichiometry. Created by Michelle Flowers, a Chemistry teacher in the US who teaches grade 11. This comprehensive practice test serves as an excellent midterm review tool that can be implemented in multiple instructional contexts throughout the semester. Teachers can use individual sections as targeted warmup activities to reinforce specific concepts, assign the complete quiz as homework to gauge student readiness before the actual midterm, or employ it as a formative assessment to identify areas requiring additional instruction. The quiz format makes it particularly effective for student self-assessment and peer review sessions, allowing learners to identify knowledge gaps and focus their study efforts accordingly. This assessment aligns with NGSS standards HS-PS1-1 (atomic structure and periodic trends), HS-PS1-3 (chemical vs. physical changes), and supports Common Core mathematical practices through its emphasis on precision, unit analysis, and quantitative reasoning in scientific contexts.