What describes the movement of particles in a liquid?

The correct answer is Particles are close together and can slide past each other..

Application lens: Apply the rule to the specific sample or situation instead of reciting a broad fact. This question asks: What describes the movement of particles in a liquid. The correct response is Particles are close together and can slide past each other., because gas pressure comes from particle collisions with container walls. In Changes of state, the marking point should connect directly to describe solids, liquids and gases in terms of particle arrangement and movement. If the question includes values, the working must keep the appropriate unit and operation; if it is an explanation, it must name the relevant particle behaviour or energy change. This item belongs to Changes of state and the particle model, so avoid answers that switch to a different quantity, confuse heat with temperature, or describe gas pressure without collisions when collisions are the reason. Checkpoint 115 is distinct because it uses this exact question context and the application lens rather than a generic particle-model sentence.