Here is the completed worksheet with answers and explanations for each question based on the
States of Matter:
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✔ Answers:
1.
Everything we drink is in its _liquid_ form.
→ Drinks like water, juice, or milk flow and take the shape of their container — key properties of liquids.
2.
_Liquid_ takes on the shape of its container.
→ Liquids have no fixed shape but have a fixed volume. They conform to the bottom and sides of whatever container they’re poured into.
3.
In the liquid state, particles are _close together_ and can move freely.
→ Liquid particles are not as tightly packed as solids, allowing them to slide past each other — this enables flow.
4.
Matter in its _solid_ is characterized by having a fixed shape and volume.
→ Solids maintain their own shape and volume because their particles are locked in place (vibrate but don’t move freely).
5.
Particles in the _solid_ state are held together in an organized structure.
→ In solids, particles are arranged in a regular pattern (crystalline or amorphous), giving them rigidity.
6.
The vapor coming out of the pot is a _gas_.
→ Vapor (steam) is water that has evaporated or boiled — it expands to fill space, which is a gas property.
7.
Matter in its _gas_ state can change its volume and shape.
→ Gases expand to fill any container; they have neither fixed shape nor fixed volume.
8.
Particles are well separated and can move freely in the _gas_ state.
→ Gas particles are far apart and move rapidly in all directions, colliding with each other and container walls.
9.
Matter exists in _three_ states: _solid_, _liquid_ and _gas_.
→ These are the three classical states of matter taught at this level. (Plasma is a 4th state but usually not introduced here.)
10.
_Gaseous_ matter doesn't have a fixed shape or volume.
→ This is the defining feature of gases — they expand to fill their container’s shape and volume.
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📌 Summary of States of Matter:
| State | Shape | Volume | Particle Arrangement |
|---------|-------------|-------------|----------------------------------|
| Solid | Fixed | Fixed | Tightly packed, ordered |
| Liquid | Not fixed | Fixed | Close, can slide past each other |
| Gas | Not fixed | Not fixed | Far apart, move freely |
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✔ All answers align with basic science curriculum for elementary/middle school students learning about the physical states of matter.
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Parent Tip: Review the logic above to help your child master the concept of state of matter worksheet for 2nd grade.
