Free Chemistry Worksheets for High School Students
High school chemistry covers essential concepts such as atomic structure, the periodic table, chemical bonding, reactions and equations, stoichiometry, states of matter, solutions, reaction rates, thermochemistry, and nuclear processes. Students learn to analyze chemical properties, solve quantitative problems, and understand the principles that govern matter and energy.
Here you’ll find a variety of free chemistry worksheets and activities designed for grades 9–12. Teachers can assign these materials online for automatic grading or print them for classroom or homework use. All worksheets are editable, so you can adapt them to your students’ needs or create your own with AI tools.
By material type
Materials (24 materials)
Worksheet
Acids and bases properties
A 10th-grade classroom material exploring acids and bases properties, including the Arrhenius and Bronsted-Lowry definitions, common acids and bases, and indicators. Students practice identifying properties, understanding definitions, and ranking substances by acidity through question-based exercises.
Chemistry · Grade 10 · Used 1 time · Oct 15, 2026
Worksheet
Atomic structure worksheet: protons, neutrons and electrons
Students practise counting protons, neutrons and electrons from atomic and mass numbers, comparing isotopes and finding the charge of ions. The worksheet uses multiple choice, fill in, matching, ordering and sorting items for grade 10 chemistry.
Chemistry · Grade 10 · New · Nov 3, 2026
Worksheet
Moles and molar mass worksheet
Students find molar mass from the periodic table, convert between grams and moles and use Avogadro's number to count particles. Items include multiple choice, fill in, matching, ordering and sorting for grade 10 chemistry.
Chemistry · Grade 10 · New · Nov 3, 2026
Worksheet
Atoms, elements and the periodic table worksheet
Students review atoms and elements: atomic number, mass number, symbols, groups and periods, and metals, nonmetals and metalloids. Questions use choice, matching, ordering, sorting and fill-in tasks. For 9th grade chemistry.
Chemistry · Grade 9 · New · Nov 3, 2026
Worksheet
Chemical bonding worksheet: ionic and covalent bonds
Students distinguish ionic and covalent bonds, track electron transfer and sharing, predict bond type from metals and nonmetals, and write simple ionic formulas. Item types include matching, sorting, ordering and fill-in. Grade 10.
Chemistry · Grade 10 · New · Nov 3, 2026
Worksheet
Stoichiometry practice
Students practise stoichiometry using mole ratios from balanced equations, mass-to-mass conversions, and step-by-step calculations. Guided through short question sets on limiting reagents and excess. Level: 11th grade.
Chemistry · Grade 11 · New · Oct 28, 2026
Worksheet
Le Chatelier's principle practice
This material helps 12th-grade students practice applying Le Chatelier's principle through questions on predicting equilibrium shifts caused by changes in concentration, pressure, and temperature. Students analyze reaction scenarios and sequence steps to determine effects on chemical equilibria.
Chemistry · Grade 12 · New · Oct 15, 2026
Worksheet
Reaction rates practice
This material helps 10th-grade students practice reaction rate concepts by answering multiple-choice questions on factors like temperature, concentration, surface area, and catalysts. It also includes sequencing steps of collision theory and matching factors with their effects to reinforce understanding.
Chemistry · Grade 10 · New · Oct 15, 2026
Worksheet
Chemical equilibrium practice
Students practice identifying conditions of dynamic equilibrium, analyzing reversible reactions, and writing equilibrium constant expressions through multiple-choice and sequencing questions. Suitable for 11th-grade learners studying chemical equilibrium concepts.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Electron configuration practice
An electron configuration practice for 11th-grade students focusing on energy levels, orbitals, and noble gas notation. Students identify correct configurations, determine filled subshells, order orbitals by energy, and match elements to noble gas cores through varied question formats.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Atomic structure practice
This 9th grade practice activity on atomic structure helps students identify and understand protons, neutrons, electrons, atomic and mass numbers, isotopes, and ions through question types like multiple-choice, ordering, and fill-in-the-blank exercises.
Chemistry · Grade 9 · New · Oct 15, 2026
Worksheet
Periodic table trends practice
A 10th-grade practice activity exploring periodic table trends, where students identify elements as metals, nonmetals, or metalloids; analyze reactivity groups; and arrange elements by atomic radius through structured questions and comparisons.
Chemistry · Grade 10 · New · Oct 15, 2026
Worksheet
pH calculations practice
This 11th-grade practice activity helps students understand pH and pOH concepts by analyzing solution acidity, identifying true statements about bases, completing sentences with appropriate terms, and arranging solutions from most acidic to most basic through various question types.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Molarity and dilution practice
This material provides 11th-grade students practice in molarity calculations and preparing diluted solutions using the M1V1 = M2V2 formula. Students solve questions on determining molarity, identifying needed data, and sequencing steps to generate solutions.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Fission and fusion compared
This resource helps 12th-grade students compare nuclear fission and fusion through questions on process descriptions, energy release, nuclear power, and stellar energy sources. Students analyze statements about benefits, risks, and differences between the two processes.
Chemistry · Grade 12 · New · Oct 15, 2026
Worksheet
Nuclear decay equations
Students practice identifying nuclear decay types, balancing nuclear equations, and analyzing decay effects through multiple-choice and sequencing questions, focusing on alpha, beta, and gamma decay at the 11th-grade level.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Half-life practice problems
This classroom material provides 10th-grade students with practice in calculating remaining mass after multiple half-lives, determining half-life from data, and applying concepts to carbon-14 dating through structured questions and problem-solving steps.
Chemistry · Grade 10 · New · Oct 15, 2026
Worksheet
Naming ionic and covalent compounds
Students practice naming ionic and covalent compounds through questions on ionic names with polyatomic ions and transition metals, covalent prefixes, and writing formulas from names, following a structured sequence of steps. Level: 11th grade.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Ionic and covalent bonds practice
This 10th-grade classroom material provides practice in distinguishing ionic and covalent bonds through multiple-choice questions. Students analyze bond types based on electron transfer versus sharing, properties, and element characteristics.
Chemistry · Grade 10 · New · Oct 15, 2026
Worksheet
Lewis structures practice
This 11th-grade activity guides students in practicing Lewis structures by identifying covalent bonds, evaluating octet rule adherence, sequencing steps for drawing structures, and classifying bond types, primarily through multiple-choice and matching questions.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Limiting reactant and percent yield
This educational material helps 12th-grade students practice identifying limiting and excess reactants, calculating theoretical and percent yields through varied question types, and understanding key concepts in reaction stoichiometry and yield calculations. The lessons include problem-solving exercises, multiple-choice questions, and step-arrangement tasks.
Chemistry · Grade 12 · New · Oct 15, 2026
Worksheet
Mole conversions practice
This classroom material helps 10th-grade students practice mole conversions by solving questions on Avogadro's number, molar mass, and converting between grams, moles, and particles. Students follow step-by-step exercises, including ordering conversion steps and applying formulas.
Chemistry · Grade 10 · New · Oct 15, 2026
Worksheet
Balancing equations challenge
An 11th-grade classroom material focusing on balancing equations through various exercises, including identifying correctly balanced combustion and redox reactions, arranging steps in the balancing process, and matching word equations to their balanced forms.
Chemistry · Grade 11 · New · Oct 15, 2026
Worksheet
Types of chemical reactions
This classroom material helps 10th-grade students practice identifying and classifying chemical reactions such as synthesis, decomposition, single replacement, double replacement, and combustion. Students reinforce their understanding by answering multiple-choice questions, classifying reaction types, and practicing how to balance equations through step-by-step exercises.
Chemistry · Grade 10 · New · Oct 15, 2026
Topics
- Balancing Chemical Equations Worksheets for High School Chemistry
- Atomic Structure Worksheets and Periodic Table Resources
- Stoichiometry Worksheets for High School Chemistry
- Acids and Bases Worksheets for High School Chemistry
- Equilibrium Worksheets for Reaction Rates and Equilibrium
- Half Life Worksheets and Nuclear Chemistry for High School
- Ionic and Covalent Bonds Worksheets for High School Chemistry
Questions teachers ask
What topics do these chemistry worksheets cover?
The worksheets include topics like atomic structure, periodic table, chemical bonding, chemical reactions, stoichiometry, states of matter, solutions, acids and bases, reaction rates, thermochemistry, and nuclear processes.
Can I edit or customize the chemistry activities?
Yes, you can copy any worksheet from the library and modify it to fit your lesson plans or create new materials using AI.
How do I use these worksheets with my class?
You can assign worksheets online with a class code for interactive use and automatic grading, or print them for use in class or as homework.