SC-366

Particle model of matter

Lower Sec Science · Secondary 1 · Hard · Particle model of matter

A student compares two beakers of water. Beaker X contains water at

20^\circ\text{C}

and beaker Y contains water at

60^\circ\text{C}

. Using the particle model, which statement correctly explains why the water in beaker Y has a larger volume than in beaker X?

Heating creates more water particles, so the volume increases.
Particles in beaker Y move faster and are further apart, so the volume increases.
Particles in beaker X move faster and are further apart, so the volume increases.
Heating makes the particles smaller, so the volume increases.

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