Sounds travel in the form of waves., Sounds travel faster in liquid than solid., Without vibration, there will be no sound., Volume describes how high or low a sound is., The source of sound can be natural or artificial., The loudness or softness of a sound is called pitch., Sounds make you aware of what is happening around you., Artificial sounds are wonderful sounds that come from nature., Natural sounds are sounds that we hear every day from non-living things., Sound is a type of energy that travels in waves through a medium, such as air, water, or solid objects.

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