The cards Question What are the three states a substance may have? Tap to flip Answer Solid, liquid and gas. Question Describe a substance in the solid state. Tap to flip Answer It has a fixed shape, does not flow and cannot be compressed. Question Describe a substance in the liquid state. Tap to flip Answer It can flow, fills the shape of its container and cannot be compressed. Question What does it mean for a substance to flow? Tap to flip Answer It can be poured from one place to another. Question What does it mean to compress a substance? Tap to flip Answer To make it take up less space (volume). Question What are all substances made of? Tap to flip Answer Particles that are too small to see. Question What is there between the particles of a substance? Tap to flip Answer Nothing. Question What is melting? Tap to flip Answer A substance changing from the solid state to the liquid state. Question What is the melting point of a substance? Tap to flip Answer The temperature at which it changes from the solid state to the liquid state. Question What holds the particles of a solid in fixed positions? Tap to flip Answer Forces of attraction between the particles. Question How are the particles arranged in the solid state? Tap to flip Answer In a regular arrangement. Question How are the particles arranged in the liquid state? Tap to flip Answer In a random arrangement. Question In the liquid state, why can particles move around even though they are held together? Tap to flip Answer They have enough energy to break free and move around. Question How does the strength of attraction between particles affect a substance's melting point? Tap to flip Answer The stronger the attraction, the higher the melting point. Question At what temperature does water freeze? Tap to flip Answer 0 °C. Question About what is human body temperature? Tap to flip Answer About 37 °C. Question How do particles in the solid state move? Tap to flip Answer They stay in fixed positions and can only vibrate. Question What is the freezing point of a substance? Tap to flip Answer The temperature at which it changes from the liquid state to the solid state. Question In which state is a substance at temperatures below its melting point? Tap to flip Answer The solid state. Question How do the melting point and freezing point of a pure substance compare? Tap to flip Answer They are the same temperature. Question Describe a substance in the gas state. Tap to flip Answer It can flow, fills the whole of its container and can be compressed. Question How do particles move in the gas state? Tap to flip Answer Very quickly, in random directions, with gaps between them. Question Why are gas particles free of the attractive forces between them? Tap to flip Answer They have enough energy to be free of them. Question Is there air between the particles of a gas? Tap to flip Answer No. There is nothing at all between the particles. Question What is boiling? Tap to flip Answer When a substance in the liquid state is heated and gas bubbles form. Question What is the boiling point of a substance? Tap to flip Answer The temperature at which it changes from the liquid state to the gas state. Question What is condensing? Tap to flip Answer When a substance in the gas state is cooled and changes to the liquid state. Question How do the boiling point and condensing point of a substance compare? Tap to flip Answer They are the same temperature. Question What are the boiling point and condensing point of water? Tap to flip Answer 100 °C. Question What is steam? Tap to flip Answer Water in the gas state. Question What happens to a substance's volume when it boils? Tap to flip Answer It increases. Question What happens to the spacing of particles when a substance boils, and when it condenses? Tap to flip Answer They move further apart when it boils and closer together when it condenses. Question Which state of a substance has the most energy, and which the least? Tap to flip Answer The gas state has the most; the solid state has the least. Question What is evaporation? Tap to flip Answer A particle at the surface of a liquid gaining enough energy to change to the gas state and mix with the air. Question Can a liquid evaporate below its boiling point? Tap to flip Answer Yes. Question How does the temperature of water affect how quickly it evaporates? Tap to flip Answer The hotter the water, the more quickly it evaporates. Question Which has the higher evaporation rate, ethanol or water? Tap to flip Answer Ethanol. Where this deck sits in the curriculum Curriculum National Curriculum for England Stage Key stage 3 (Years 7–9) Course KS3 Science Unit Solid, liquid, gas states and changes of state England's National Curriculum sets what is taught; the units and their order are Oak National Academy's. Flash Feed is not affiliated with Oak or any exam board.
How this deck was checked On 2026-11-02, every card was compared with its source: the lessons of Oak National Academy, a public body funded by England's Department for Education that publishes lessons for the national curriculum. Because the cards come from those lessons, no second source was sought. The comparison was done automatically, not by a teacher, so a card can still be wrong. Flash Feed is not affiliated with any source named here.
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A Science lesson by Oak National Academy licensed under Open Government Licence (OGL)
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