Final answer:
When a substance that does not dissolve in water is added to water, it forms a suspension.
Step-by-step explanation:
When a substance that does not dissolve in water is added to water, it forms a suspension. In a suspension, the particles of the substance do not dissolve but rather separate into smaller particles that are dispersed throughout the water. These particles may eventually settle at the bottom of the container due to gravity or through filtration.
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