Grade 10 - Worksheets - Chemistry - Free Printable

Let’s solve this step by step.

We are given three diagrams showing changes of state:

1. Snow (solid) → ?
2. Water (liquid) → ?
3. Water vapour (gas) ← from boiling water

And we have arrows labeled 1 to 6 connecting them, meaning each arrow represents a change of state.

Vocabulary terms given:
- Condensation
- Deposition
- Evaporation
- Melting
- Solidification
- Sublimation

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Step 1: Understand what each diagram shows.

Diagram 1: Snowman made of snow (solid). Arrow 1 points away from it — likely melting into liquid? But wait — look at the full cycle.

Actually, let’s map all transitions based on standard phase changes.

Standard phase changes:

Solid → Liquid = Melting
Liquid → Gas = Evaporation (or Vaporization)
Gas → Liquid = Condensation
Liquid → Solid = Freezing (also called Solidification)
Solid → Gas = Sublimation
Gas → Solid = Deposition

Now look at the diagrams:

Left box: “snow (solid)” — so solid water.

Middle box: “water (liquid)” — liquid water.

Right box: “water vapour (gas)” — gaseous water.

Arrows:

Arrow 1: From snow (solid) → ??? Probably going to water (liquid)? That would be melting.

But wait — arrow 1 is pointing *away* from snowman upward? Actually, looking at layout:

The arrows connect the boxes in a cycle.

Typically, these worksheets show:

Snow (solid) ↔ Water (liquid) ↔ Water vapour (gas)

With arrows between them.

Let me assign numbers as per typical layout:

Assume:

Arrow 1: Solid → Liquid → Melting
Arrow 2: Liquid → Solid → Solidification
Arrow 3: Liquid → Gas → Evaporation
Arrow 4: Gas → Liquid → Condensation
Arrow 5: Solid → Gas → Sublimation
Arrow 6: Gas → Solid → Deposition

Wait — but in the image description, there are 6 arrows around 3 boxes.

Looking again:

There are 3 boxes arranged left to right:

[SNOW (SOLID)] --arrow 2--> [WATER (LIQUID)] --arrow 3--> [WATER VAPOUR (GAS)]

Then below:

[WATER VAPOUR] --arrow 5--> [WATER] --arrow 4--> [SNOW]

And also:

[SNOW] --arrow 1--> ??? Maybe directly to gas? And [GAS] --arrow 6--> snow?

Actually, common setup:

Top row:

Solid --(melting)--> Liquid --(evaporation)--> Gas

Bottom row:

Gas --(condensation)--> Liquid --(freezing/solidification)--> Solid

Plus direct paths:

Solid --(sublimation)--> Gas

Gas --(deposition)--> Solid

So if arrows are numbered:

Let’s assume:

Arrow 1: Solid → Gas → Sublimation
Arrow 2: Solid → Liquid → Melting
Arrow 3: Liquid → Gas → Evaporation
Arrow 4: Gas → Liquid → Condensation
Arrow 5: Liquid → Solid → Solidification
Arrow 6: Gas → Solid → Deposition

Yes, that makes sense with 6 arrows covering all possible transitions.

Now match to vocabulary:

Given terms:

Condensation → Gas to Liquid → Arrow 4
Deposition → Gas to Solid → Arrow 6
Evaporation → Liquid to Gas → Arrow 3
Melting → Solid to Liquid → Arrow 2
Solidification → Liquid to Solid → Arrow 5
Sublimation → Solid to Gas → Arrow 1

Perfect.

So labeling:

Arrow 1: Sublimation
Arrow 2: Melting
Arrow 3: Evaporation
Arrow 4: Condensation
Arrow 5: Solidification
Arrow 6: Deposition

Now part 7: Complete the table.

Table has:

Process | Change of state | Heat added or released

Given:

Condensation → ? → Released
Deposition → ? → ?
Evaporation → Liquid → Gas → ?
Melting → ? → Added

Fill in missing parts.

Recall:

When heat is ADDED: substance gains energy → moves to higher energy state (solid→liquid→gas)

When heat is RELEASED: substance loses energy → moves to lower energy state (gas→liquid→solid)

So:

Condensation: Gas → Liquid → releases heat → already filled.

Deposition: Gas → Solid → releases heat (since going to lower energy state)

Evaporation: Liquid → Gas → requires heat → so heat added

Melting: Solid → Liquid → requires heat → already says "Added"

Also need to fill “Change of state” for Condensation and Deposition and Melting.

Condensation: Gas → Liquid
Deposition: Gas → Solid
Melting: Solid → Liquid (already implied, but should write it)

Wait — table says:

For Condensation: Change of state is blank → should be “Gas → Liquid”

For Deposition: both blanks → “Gas → Solid” and “Released”

For Evaporation: Heat column blank → “Added”

For Melting: Change of state blank → “Solid → Liquid”

Let’s complete:

Row 1: Condensation → Gas → Liquid → Released ✔

Row 2: Deposition → Gas → Solid → Released

Row 3: Evaporation → Liquid → Gas → Added

Row 4: Melting → Solid → Liquid → Added ✔

All set.

Final Answers:

For diagram labeling:

1. Sublimation
2. Melting
3. Evaporation
4. Condensation
5. Solidification
6. Deposition

For table:

Deposition: Change of state = Gas → Solid; Heat = Released
Evaporation: Heat = Added
Melting: Change of state = Solid → Liquid

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Final Answer:
Diagram labels:
1. Sublimation
2. Melting
3. Evaporation
4. Condensation
5. Solidification
6. Deposition

Table completion:
- Deposition: Change of state = Gas → Solid; Heat = Released
- Evaporation: Heat = Added
- Melting: Change of state = Solid → Liquid