Learn about solids, liquids, and gases with fun games, colorful animations, and easy explanations! 🧊💧💨
Everything around you is either a solid, liquid, or gas!
Solids keep their shape! The tiny particles inside are packed tightly together and only vibrate in place. They can't move around freely.
🪨 Rocks · 🧊 Ice cubes · 📚 Books · 🪑 Chairs · ✏️ Pencils · 🍫 Chocolate bars
Liquids flow and take the shape of their container! Particles are close together but can slide past each other.
💧 Water · 🥛 Milk · 🧃 Juice · 🍯 Honey · 🫧 Soap · 🎨 Paint
Gases spread out everywhere! Particles zoom around super fast and fill up any space they're in.
🌬️ Air · 🎈 Helium · 💨 Steam · 🫧 Bubbles · 🌸 Smells · 🔥 Smoke
Use the temperature slider to see how particles behave in each state
Click on each item and sort it into the correct state of matter!
Sort of! When ice melts, for a little while you have both ice (solid) and water (liquid) in the same glass. Scientists call this a "phase transition" — the ice is changing from one state to another! 🧊→💧
Gases like air have particles spread so far apart that light passes right through! Water particles are close enough together to reflect and bend light, making it visible. Some gases ARE visible though — like the colorful gas in neon signs! 🌈
When water gets really hot (100°C), the particles move so fast they escape as steam (gas)! The bubbles you see are actually water turning into gas underwater. This is called "boiling" or "vaporization"! ♨️💨
Great question! Fire is actually NOT a state of matter — it's a chemical reaction! The flames you see are hot gases glowing with light and heat. Some scientists say very hot fire can create plasma — a 4th state of matter! 🔥⚡
Yes! This is called "sublimation"! Dry ice (frozen CO₂) does this — it turns directly into gas without melting into liquid. That's why it makes spooky fog at Halloween parties! 🧊💨✨