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Science · Physical Science
States of Matter
Everything is made of tiny particles. How much heat energy they have decides if matter is a solid, a liquid, or a gas.
🔬The Three States
🧊SOLID
ParticlesPacked tight, only vibrate in place
Shape & SizeKeeps its own shape and size
🧊 ice · 🪨 rock · 🧱 brick
💧LIQUID
ParticlesClose together, but flow and slide
Shape & SizeTakes its container's shape, same size
💧 water · 🥛 milk · 🧃 juice
☁️GAS
ParticlesFar apart, zoom around fast
Shape & SizeSpreads out to fill any container
☁️ steam · 🌬️ air · 🎈 helium
🥤 All three states — in one glass!
The ice cubes are a SOLID 🧊
The water is a LIQUID 💧
The steam rising up is a GAS ☁️
🌡️Adding & Removing Heat
🔑Key Terms
🫠Melting Solid → liquid when it heats up (ice → water).
❄️Freezing Liquid → solid when it cools down (water → ice).
♨️Evaporation Liquid → gas when it heats up (water → steam).
💦Condensation Gas → liquid when it cools down (steam → water).
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Remember: matter doesn't disappear when it changes state — the same particles just speed up or slow down!