1. Decantation – the process of gently pouring liquid to separate it from solid or heavier particles settled at the bottom.2. Dense – describes an object or substance that is heavy for its size; sinks in water.3. Less-dense – lighter than another substance; tends to float on water.4. Remove – to take away something or separate it from a mixture.5. Scooping – taking out solid materials using a spoon or similar tool.6. Float – to stay on the surface of a liquid, not sink.7. Sediment – solid particles that settle at the bottom of a liquid.8. Evaporation – the process where a liquid slowly turns into gas, usually due to heat.9. Drives off – removes or forces something (like water) to go away, often using heat.10. Caution – careful attention or warning to avoid danger or mistakes.