Van Veen Grab

A Van Veen Grab is a specialized tool used by scientists to collect sediment samples from the bottom of bodies of water, such as lakes or oceans. It consists of a hinged pair of metal scoops or jaws that open and close when lowered or pulled up by a cable. When it hits the bottom, it opens to gather a small amount of sediment, then closes and is retrieved for analysis. This device allows researchers to study underwater sediments, helping understand environmental conditions, pollution, or ecological changes over time.