Do water molecules speed up or slow down

If its liquid form they move slow but if its ice they move fast

Explanation:

In its liquid form, water molecules move around slowly, sliding past each other.

Explanation:

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.