States of Water Quiz for Grade 6 with Answers: Test Your Knowledge on Phase Changes

📚 Quick Study Guide

• 🧊 Solid (Ice): Water in its frozen state. Molecules are tightly packed.
• 💧 Liquid (Water): The most common state. Molecules are close but can move around.
• 💨 Gas (Steam): Water in its gaseous state. Molecules are far apart and move freely.
• 🔥 Melting: The process of solid ice changing to liquid water due to increased temperature.
• ❄️ Freezing: The process of liquid water changing to solid ice due to decreased temperature.
• 🌡️ Boiling: The process of liquid water changing to steam (gas) due to high temperature.
• ☁️ Condensation: The process of water vapor (gas) changing to liquid water due to decreased temperature.
• ✨ Sublimation: The process where a solid changes directly into a gas (e.g., dry ice).
• 🧪 Deposition: The process where a gas changes directly into a solid.
• 📐 Key Formula: $H_2O$ represents water in all its states.

🧪 Practice Quiz

1. What is the process called when ice turns into liquid water?
   1. A) Condensation
   2. B) Evaporation
   3. C) Melting
   4. D) Freezing
2. Which state of water has molecules that are farthest apart?
   1. A) Solid
   2. B) Liquid
   3. C) Gas
   4. D) Ice
3. What happens to water molecules when water boils?
   1. A) They slow down and move closer together.
   2. B) They speed up and move farther apart.
   3. C) They stay the same.
   4. D) They turn into ice.
4. What is the process called when water vapor turns into liquid water?
   1. A) Melting
   2. B) Boiling
   3. C) Condensation
   4. D) Freezing
5. At what temperature does water typically freeze?
   1. A) 100°C
   2. B) 50°C
   3. C) 0°C
   4. D) 25°C
6. Which of the following is an example of sublimation?
   1. A) Water freezing into ice
   2. B) Ice turning directly into water vapor
   3. C) Water boiling into steam
   4. D) Steam condensing into water
7. What is water in its solid state commonly called?
   1. A) Steam
   2. B) Water Vapor
   3. C) Ice
   4. D) Liquid Water