Educational worksheet showing the six phases of matter and their transitions.

The task in the image is to identify the correct process for each phase change depicted. The processes are labeled as "Melting," "Freezing," "Evaporation," "Condensation," and "Sublimation." Each process involves a transition between different states of matter (solid, liquid, gas). Let's analyze each section step by step:

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1. Melting

- Definition: The process where a solid changes into a liquid.
- States Involved: Solid → Liquid
- Pointer:
- A: Points from solid to liquid.
- B: Points from liquid to solid.

Since melting involves a transition from solid to liquid, the correct pointer is A.

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2. Freezing

- Definition: The process where a liquid changes into a solid.
- States Involved: Liquid → Solid
- Pointer:
- A: Points from liquid to solid.
- B: Points from solid to liquid.

Since freezing involves a transition from liquid to solid, the correct pointer is A.

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3. Evaporation

- Definition: The process where a liquid changes into a gas.
- States Involved: Liquid → Gas
- Pointer:
- A: Points from liquid to gas.
- B: Points from gas to liquid.

Since evaporation involves a transition from liquid to gas, the correct pointer is A.

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4. Condensation

- Definition: The process where a gas changes into a liquid.
- States Involved: Gas → Liquid
- Pointer:
- A: Points from gas to liquid.
- B: Points from liquid to gas.

Since condensation involves a transition from gas to liquid, the correct pointer is A.

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5. Sublimation

- Definition: The process where a solid changes directly into a gas (or vice versa).
- States Involved: Solid → Gas (or Gas → Solid)
- Pointer:
- A: Points from solid to gas.
- B: Points from gas to solid.

Since sublimation involves a transition from solid to gas, the correct pointer is A.

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Final Answer

The correct pointers for each process are:
- Melting: A
- Freezing: A
- Evaporation: A
- Condensation: A
- Sublimation: A

Thus, the solution is:
\[
\boxed{A}
\] for all processes.