StateSort: Solid, Liquid & Gas game

Solid, liquid, or gas? Sometimes the answer is obvious. Sometimes you have to think about what matter is actually doing.

In StateSort: Solid, Liquid & Gas, students race to classify more than 50 familiar materials and substances by their state of matter. From ice, wood, and sugar crystals to water, honey, oxygen, and helium, the game turns a foundational science concept into a fast-paced sorting challenge.

Students practise recognizing the properties of solids, liquids, and gases while scoring points, building combos, and dealing with surprise pressure-drop events along the way.

Two difficulty levels make StateSort useful for introducing states of matter or turning review into a classroom competition.

This browser-based game requires no downloads and can be played individually or as a classroom team challenge.

Drag each item into Solid, Liquid, or Gas before time runs out. Correct answers earn points, fast correct answers build combo bonuses, and incorrect answers cost points.

Keep an eye on the board! A surprise pressure drop can remove one of your correctly sorted items and shake up your score.

Mode Selection:
• Learning Mode: Traits are colour-coded by category for extra guidance.
• Challenge Mode: All traits appear in the same colour, so students have to rely on what they know.

Play Style Options:
• Individual Mode: Enjoy the game on your own.
• Team Mode: The game pauses every 20 seconds to allow a new player to take a turn (4 turns total).

A built-in leaderboard for each mode and play style lets students compete against themselves, classmates, or other teams over multiple rounds.

Unlock 3 months of unlimited access to the game! Upon purchase, you'll receive a PDF with your unique access link

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StateSort supports learning about the properties and classification of solids, liquids, and gases and provides foundational practice for later study of particle motion, thermal energy, and changes of state. Strong curriculum connections include:

Alberta Connection (Grade 7 – Heat and Temperature):
StateSort supports the Grade 7 Heat and Temperature unit by reinforcing the states of matter students use when applying the particle model to thermal energy, temperature, heating, cooling, and changes of state.

British Columbia Connection (Grade 4 – Phases of Matter):
StateSort directly reinforces Grade 4 learning about solids, liquids, and gases. It supports the study of phases of matter and prepares students to explore how heating and cooling affect particle movement and cause reversible changes of state.

Manitoba Connection (Grade 7 – Particle Theory of Matter):
StateSort supports Grade 7 learning about the three states of matter and the particle theory used to explain their properties and behaviour. It provides foundational classification practice for later exploration of how adding or removing energy affects particles and changes of state.

Saskatchewan Connection (Grade 7 – Heat and Temperature):
StateSort supports outcome HT7.2, which connects differences between states of matter and changes caused by heating and cooling to the particle theory of matter.

Nova Scotia Connection (Grade 8 – Kinetic Molecular Theory):
StateSort supports Grade 8 learning about kinetic molecular theory by reinforcing the states of matter students use when examining particle behaviour, heat, and temperature.

Prince Edward Island Connection (Grade 7 – Heat):
StateSort supports Grade 7 learning about the effects of heat on different forms of matter and provides useful preparation for investigations involving solids, liquids, gases, and changes of state.

StateSort supports foundational knowledge for MS-PS1-4: Matter and Its Interactions, which asks students to develop a model describing changes in particle motion, temperature, and state when thermal energy is added or removed.

The standard specifically addresses molecular-level models of solids, liquids, and gases. By building fluency in identifying the three states of matter, StateSort prepares students for deeper investigation of particle behaviour and changes of state.