Solids, Liquids, and Gases Quiz for Grade 3 with Answers

📚 Quick Study Guide

🧊 Solids: Have a definite shape and volume. Think of a brick or an ice cube! The molecules are tightly packed together.
• 💧 Liquids: Have a definite volume but take the shape of their container. Water, milk, and juice are all liquids. The molecules are close together but can move around.
• 💨 Gases: Have no definite shape or volume. They spread out to fill whatever space is available. Air, oxygen, and helium are gases. The molecules are far apart and move very quickly.
• 🌡️ Changes of State: Solids can melt into liquids (like ice melting into water), and liquids can evaporate into gases (like water boiling into steam). Gases can condense into liquids (like steam turning into water on a cold window), and liquids can freeze into solids (like water freezing into ice).

🧪 Practice Quiz

1. What state of matter has a definite shape and volume?
   1. Liquid
   2. Gas
   3. Solid
   4. Plasma
2. Which of the following is an example of a liquid?
   1. Rock
   2. Water
   3. Air
   4. Wood
3. Which state of matter takes the shape of its container and has a definite volume?
   1. Solid
   2. Gas
   3. Liquid
   4. Plasma
4. What happens when you heat ice?
   1. It turns into a gas.
   2. It turns into a liquid.
   3. It stays the same.
   4. It disappears.
5. Which of the following is an example of a gas?
   1. Juice
   2. Air
   3. Ice
   4. Rock
6. What is the process of a liquid turning into a gas called?
   1. Melting
   2. Freezing
   3. Evaporation
   4. Condensation
7. Which state of matter has molecules that are far apart and move very quickly?
   1. Solid
   2. Liquid
   3. Gas
   4. Plasma