Our Approach

Incorporating programming and data management into science education provides students with a powerful toolkit for understanding and exploring scientific concepts. By learning to code and manage data, students can conduct their own analyses, simulations, and experiments, fostering a deeper understanding of the scientific process.

Accessible on all devices

ChemKeyz will be available on the Google Play Store and Apple App Store for the 2025 school year! You can also use it in a web browser on any tablet, laptop, or phone.

Spark natural curiosity

By presenting complex chemistry concepts in an engaging and interactive way, we aim to pique students’ interest and encourage them to delve deeper into the subject. This curiosity-driven approach to learning can lead to a lifelong passion for science.

Meet our tutors

In addition to offering hints, our fun and cute tutors play an essential role for the learning experience: companion. It’s much more fun to learn when you’re with a friend!

Day streaks

Keep the streak alive! Our app tracks your daily progress, turning learning into a fun challenge.

Gradual difficulty progression

Our app ensures a smooth learning journey by gradually increasing the difficulty level. This approach allows learners to build a strong foundation before tackling more complex concepts, making the learning process more enjoyable and less overwhelming.

ChemKeyz Question Bank Alignment

At ChemKeyz, we ensure our question bank is aligned with your learning needs, covering levels, long and short concepts, and NGSS standards. We combine advanced AI technology with expert review from experienced subject matter experts (SMEs) to achieve this.

Our Approach:

AI Analysis: Our AI scans and evaluates each question for content accuracy and relevance.
Expert Review: SMEs validate and refine questions to match curriculum standards.
Continuous Updates: We integrate feedback to keep our questions current and effective.

With ChemKeyz, you get accurate, relevant, and up-to-date study materials, tailored to support your educational success.

NGSS Alignment

Level	Performance Expectation	Disciplinary Core Idea (DCI)	Science & Engineering Practice (SEP)	Crosscutting Concept (CCC)	Question count
					1,556
MS	MS-PS1-1	PS1.A - Structure and Properties of Matter	Developing and Using Models	Scale, Proportion, and Quantity	60
MS	MS-PS1-2	PS1.B - Chemical Reactions	Analyzing and Interpreting Data	Patterns	73
MS	MS-PS1-3	PS1.A - Structure and Properties of Matter	Obtaining, Evaluating, and Communicating Information	Structure and Function	59
MS	MS-PS1-4	PS1.A - Structure and Properties of Matter	Developing and Using Models	Cause and Effect	75
MS	MS-PS1-5	PS1.B - Chemical Reactions	Developing and Using Models	Energy and Matter	74
MS	MS-PS1-6	PS1.B - Chemical Reactions	Constructing Explanations and Designing Solutions	Energy and Matter	58
MS	MS-PS1-7	PS1.A - Structure and Properties of Matter	Planning and Carrying Out Investigations	Structure and Function	71
MS	MS-PS1-8	PS1.B - Chemical Reactions	Using Mathematics and Computational Thinking	Patterns	59
HS	HS-PS1-1	PS1.A - Structure and Properties of Matter	Asking Questions and Defining Problems	Patterns	62
HS	HS-PS1-2	PS1.A - Structure and Properties of Matter	Using Mathematics and Computational Thinking	Patterns	58
HS	HS-PS1-3	PS1.A - Structure and Properties of Matter	Planning and Carrying Out Investigations	Scale, Proportion, and Quantity	73
HS	HS-PS1-4	PS1.B - Chemical Reactions	Developing and Using Models	Energy and Matter	64
HS	HS-PS1-5	PS1.B - Chemical Reactions	Developing and Using Models	Energy and Matter	68
HS	HS-PS1-6	PS1.C - Nuclear Processes	Developing and Using Models	Energy and Matter	56
HS	HS-PS1-7	PS1.C - Nuclear Processes	Using Mathematics and Computational Thinking	Energy and Matter	56
HS	HS-PS1-8	PS1.B - Chemical Reactions	Obtaining, Evaluating, and Communicating Information	Stability and Change	58
HS	HS-PS1-9	PS1.A - Structure and Properties of Matter	Constructing Explanations and Designing Solutions	Scale, Proportion, and Quantity	55
HS	HS-PS1-10	PS1.B - Chemical Reactions	Analyzing and Interpreting Data	Patterns	66
HS	HS-PS1-11	PS1.C - Nuclear Processes	Asking Questions and Defining Problems	Energy and Matter	71
HS	HS-PS1-12	PS1.A - Structure and Properties of Matter	Planning and Carrying Out Investigations	Structure and Function	71
HS	HS-PS1-13	PS1.A - Structure and Properties of Matter	Developing and Using Models	Cause and Effect	57
HS	HS-PS1-14	PS1.B - Chemical Reactions	Using Mathematics and Computational Thinking	Energy and Matter	69
HS	HS-PS1-15	PS1.B - Chemical Reactions	Constructing Explanations and Designing Solutions	Patterns	69
HS	HS-PS1-16	PS1.C - Nuclear Processes	Analyzing and Interpreting Data	Stability and Change	74

Long Concept Alignment

Concept	Question Count
	1,556
Scientific Method	10
Atoms & Molecules	11
Phases & Classification of Matter	12
Physical & Chemical Properties	12
Units, Prefixes & Conversions	9
Density	9
Uncertainty, Accuracy & Precision	9
Significant Figures	12
Dimensional Analysis	11
Temperature Conversions	9
Dalton's Atomic Theory	12
Discovery of the Electron	12
Rutherford Scattering	10
Atomic Structure	11
Atomic Symbols	11
Isotopes and Average Mass	9
Periodic Table of Elements	11
Ionic and Covalent Compounds	10
Chemical Nomenclature	11
The Mole & Avogadro's Number	11
Mass, Moles and Particles	12
Formula Mass	12
Empirical & Molecular Formulas	12
Molarity	9
Molality, PPM, PPB	12
Total & Net Ionic Equations	11
Balancing Chemical Equations	12
Classifying Chemical Equations	11
Reaction Stoichiometry	12
Reaction Yields	11
Quantitative Analysis	11
Heat and Work	10
Calorimetry	9
Enthalpy	12
First Law of Thermodynamics	10
Enthalpy of Reaction	11
Hess' Law	12
Wave Nature of Light	12
Blackbody Radiation	9
Photoelectric Effect	10
Line Spectra	12
Bohr Model & Rydberg Equation	11
Wave-Particle Duality	12
Heisenberg Uncertainty Princiiple	10
Atomic Orbitals & Energy	10
Pauli Exclusion Principle	10
Aufbau Principle	9
Electron configurations	12
Periodic Trends: Size, IE, EA	12
Ionic Bonding	10
Covalent Bonding	12
Lewis Structures	10
Formal Charges and Resonance	9
Strengths of Chemical Bonds	11
Molecular Structure & Polarity	12
Valence Bond Theory	9
Hybrid Atomic Orbitals	9
Multiple Bonds	12
Molecular Orbital Theory	10
Gas Pressure	11
Simple Gas Laws	9
Ideal Gas Law	10
Gas Mixtures, Density, Partial Pressure	9
Effusion and Diffusion of Gases	11
Kinetic Molecular Theory of Gases	9
Non-ideal Gas Behavior	9
Intermolecular Forces	12
Properties of Liquids	12
Phase Transitions	12
Phase Diagrams	12
Solid State of Matter	11
Lattice Structures of Crystalline Solids	12
Semiconductors and Band Theory	9
Dissolution Process	12
Solubility	10
Electrolytes	11
Colligative Properties	10
Colloids	10
Chemical Reaction Rates	11
Arrhenius Equation	10
Rate Laws	11
Integrated Rate Laws	12
Collision Theory	11
Reaction Mechanisms	9
Catalysis	10
Chemical Equilibria	10
Equilibrium Constants	11
Le Chatelier's Principle	10
Equilibrium Calculations	11
Bronsted-Lowry Acids & Bases	10
pH and pOH	11
Relative Strengths of Acids and Bases	10
Hydrolysis of Salts	12
Polyprotic Acids	9
Buffer Solutions	10
Acid-Base Titrations	9
Slightly Soluble Salts	10
Lewis Acids and Bases	10
Coupled Equilibria	10
Formation of Complex Ions	12
Reaction Spontaneity	10
Entropy	11
2nd & 3rd Laws of Thermodynamics	11
Free Energy	9
Carnot Engine	11
Oxidation-Reduction Reactions	11
Galvanic Cells	11
Electrode and Cell Potentials	12
Potential, Free Energy & Equilibrium	12
Batteries & Fuel Cells	11
Corrosion	11
Electrolysis and Disproportionation	11
Classification of Elements	12
Representative Metals	9
Metalloids	9
Nonmetals	10
Compounds of Hydrogen	12
Carbonates	10
Compounds of Nitrogen	11
Compounds of Phosphorus	9
Compounds of Oxygen	11
Compounds of Sulfur	10
Halogens	9
Noble Gases	11
Transition Metals and Compounds	10
Coordination Chemistry	11
Properties of Coordination Compounds	12
Metallurgy	10
Hydrocarbons	10
Alcohols & Ethers	10
Aldehydes, Ketones, Acids & Esters	12
Amines and Amides	9
Stereoisomers	9
Polymers and Plastics	12
Nuclear Structure & Stability	9
Nuclear Equations	11
Radioactive Decay	10
Nuclear Fission & Fusion	9
Uses of Radioisotopes	10
Biological Effects of Radiation	11
Lipids	9
Carbohydrates	9
Amino Acids and Proteins	11
Nucleic Acids	12
Chemical Separations	10
Environmental Chemistry	10
Molecular Spectroscopy	12

Grade	Level 1 questions	Level 2 questions	Level 3 questions
Grade 8	1527	0	0
Grade 9	1503	0	0
Grade 10	1547	0	0
Grade 11	1599	0	0
Grade 12	1561	0	0
Post Secondary Year 1	1458	0	0
Post Secondary Year 2	0	1224	0
Post Secondary Year 3	0	0	206

Concept	Question Count
	1556
Scientific Method and Measurement	129
Atoms, Molecules, and Ions	125
Phases and Classification of Matter	138
Physical and Chemical Properties	132
Atomic Theory and Structure	135
Periodic Table and Periodicity	126
Chemical Bonding and Molecular Structure	125
Chemical Nomenclature and Formulas	129
Chemical Reactions and Equations	127
Gases and Gas Laws	127
Thermodynamics and Energy	130
Acids, Bases, and pH	133