States and Changes of Matter worksheet - Free Printable

Let’s go step by step through each part of the worksheet.

---

Part 1: True or False

We need to decide if each statement is true or false based on what we know about solids, liquids, and gases.

1. Solids can change their shape.
→ Solids keep their own shape unless you break them or force them (like clay). But normally, they don’t change shape easily. So this is False.

2. Liquids take the shape of the container.
→ Yes! Pour water into a cup — it becomes cup-shaped. Pour it into a bowl — it becomes bowl-shaped. So this is True.

3. Liquids keep their shape.
→ No, that’s solids. Liquids flow and change shape. So this is False.

4. Gases do not have a fixed shape.
→ Gases spread out to fill any space. They don’t hold a shape at all. So this is True.

5. Gases are often invisible.
→ Think of air — you can’t see it. Steam? Sometimes you see mist, but pure gas like oxygen or nitrogen is invisible. So this is True.

✔ Answers for Part 1:
1. False
2. True
3. False
4. True
5. True

---

Part 2: Classify items as solid, liquid, or gas

Let’s look at each item:

- Steaming coffee cup → steam is gas, coffee inside is liquid → but since it shows steam rising, likely focusing on gas
- Oil being poured → liquid
- Butter blocks → solid
- Raw egg (yolk + white) → liquid (even though yolk is thick, it still flows)
- Nata Montada (whipped cream in carton) → solid (it holds its shape when piped)
- Tomato sauce jar → liquid (sauce flows)
- Cartoon wind/cloud → represents gas (air/wind)
- Melted butter in dish → liquid
- Ice cubes → solid
- Zucchini slices → solid

Wait — let’s be careful with “nata montada” — whipped cream is actually a foam (gas trapped in liquid), but in school level, it’s usually called solid because it holds shape.

Also, steaming coffee — the *steam* is gas, but the drink is liquid. Since the image shows steam coming out, probably meant to represent gas.

So final classification:

→ Gas: steaming coffee (steam), cartoon wind
→ Liquid: oil, raw egg, tomato sauce, melted butter
→ Solid: butter blocks, nata montada, ice cubes, zucchini

But wait — the instruction says “look at the items below and decide if they are solid, liquid or gas.” It doesn’t say to list them — maybe we’re supposed to label each picture? But since there’s no box to write under each, perhaps this section is just for thinking — or maybe it’s preparatory for next parts.

Actually, looking again — the next part is drag-and-drop changes of matter, so maybe this middle section is just visual reference. We’ll move on.

---

Part 3: Drag and drop names of changes of matter

We have four terms: Evaporation, melting, condensation, freezing.

Diagram shows:

- Solid → Liquid (with heat arrow) → that’s melting
- Liquid → Gas (with heat arrow) → that’s evaporation
- Gas → Liquid (with cool arrow) → that’s condensation
- Liquid → Solid (with cool arrow) → that’s freezing

Arrows:

Top left: Solid to Liquid → melting
Top right: Liquid to Gas → evaporation
Bottom right: Gas to Liquid → condensation
Bottom left: Liquid to Solid → freezing

So boxes should be filled as:

Top left box (above solid→liquid): melting
Top right box (above liquid→gas): evaporation
Bottom right box (below gas→liquid): condensation
Bottom left box (below liquid→solid): freezing

---

Part 4: Complete sentences with correct word

Words given: condenses, melts, evaporates

1. When you heat butter it ________.
→ Butter turns from solid to liquid → melts

2. When you heat water it ________.
→ Water turns to vapor → evaporates

3. When you cool gas it ________.
→ Gas turns to liquid → condenses

✔ Final answers for Part 4:
1. melts
2. evaporates
3. condenses

---

Now, compiling everything for Final Answer.

Final Answer:
1. False
2. True
3. False
4. True
5. True

For the diagram:
Top left: melting
Top right: evaporation
Bottom left: freezing
Bottom right: condensation

Sentence completions:
1. melts
2. evaporates
3. condenses