TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY
Filtering a suspension of chalk (calcium carbonate, CaCO3) in water (H2O). The milky-white suspension is poured from a beaker through a funnel with a paper filter. Water passes through the filter while chalk does not, accumulating on the filter in the funnel.
Model release not required. Property release not required.