Matter exists in three common states: solid, liquid, and gas. Solids have a definite shape and volume because their molecules are tightly packed. Liquids have a definite volume but take the shape of their container, as their molecules can move around more freely. Gases have neither a definite shape nor a definite volume; their molecules are widely dispersed and move randomly. Understanding these differences is key to understanding the physical world around us!
Match the term with its correct definition:
| Term | Definition |
|---|---|
| 1. Solid | A. Matter with no fixed shape or volume. |
| 2. Liquid | B. The change from a liquid to a gas. |
| 3. Gas | C. Matter with a fixed volume but no fixed shape. |
| 4. Evaporation | D. Matter with a fixed shape and volume. |
| 5. Volume | E. The amount of space a substance occupies. |
Complete the sentences using the words provided: shape, molecules, volume, container, gas.
Explain how the arrangement of molecules differs in solids, liquids, and gases, and how this affects their properties. Use examples in your explanation.
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