Multiple choice

What happens to the particles when a solid changes to a liquid?

  1. They gain energy.

  2. They lose energy.

  3. They react with each other.

  4. They change shape.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a solid melts into a liquid, it absorbs thermal energy from its surroundings. This causes the particles to gain kinetic energy, vibrate more rapidly, and eventually break free from their fixed positions.

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