A gentle wind made ripples on the surface of the pond.
A fallen leaf floated on the surface of the water.
One theory is that children and adults with hyperactivity have an abnormality in the shape of the receptor molecules on the surface of the nerve cells to which the transmitters attach themselves.
The damaged AN - 24 plane, owned by the Angara Airlines, is seen after a hard landing on the surface of the Ob river in Tomsk region in western Siberia July 11, 2011.
In this study, researchers at the National Cancer Institute, Maryland, used an antibody which targets proteins on the surface of cancerous cells.
It is widely used in field that packing, advertisement appliqué on the surface of glass of potter and printing card.
This arc is made up primarily of organic compounds called polycyclic aromatic hydrocarbons, which glow on the surface of the cloud.
The pattern is of atmospheric gravity waves playing on the surface of the ocean.
Large area crack appearing on the surface of the aluminium alloy bakeware casting dies causes its early failure.
They like to sunbathe, can't blame them. They just lay out on the surface of the sea and most people think they're sick or lazy, but that's a typical behavior, they lie out and bask on the surface.