pour plate
For most liquids, an increase in pH results in decreased surface tension. This has been attributed to lower attraction force between molecules when pH rises.
Combustion is a surface process, and results from heating of the solid material. Coal is pulverized so as to give a greater surface to volume ratio, and thus burn more readily.Indeed powdered materials will sometimes combust explosively, such as explosions in flour mills.
tarnishing (a chemical change)Exposure to oxygen in the air or water causes a chemical change to occur on the surface of the nickel. This results in the nickel turning a black color.
Evaporation (more for talking about water) or vaporization (as a general term) refers to the process in which a liquid changes into a gas. In evaporation, the liquid turns into a gas at the surface. In boiling, vaporization occurs throughout the liquid.
That would depend on what the surface is made of. Water will impart a shine to just about any surface, but the shine is not long lasting as the water quickly evaporates. Shine results from even reflection of light from a smooth surface. A surface of paint may be made more shiny by coating with varnish or with a mixture of oil and solvent, fingernails are made shiny by the application of nail polish (pigments dispersed in solvent), lips are made shiny with lip gloss (usually a mixture of oils and pigment), weight lifters make their skin shiny with oil.
Deep buried colonies would be in an anaerobic environment whereas surface colonies would be exposed to air. Additionally, surface colonies might not have access to enough nutrients so they may begin to enter death phase.
How do colonies on the surface of a pour plate differ from those suspended in the agar?
How do colonies on the surface of a pour plate differ from those suspended in the agar?
Oceans are seawater throughout, not only on the surface.
The surface colonies on a pour plate larger than those within the medium especially aerobic bacteria within the medium would be a restriction of growth. The restriction of growth would be due to the lack of oxygen.
25 % of the world's land surface.
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
Advection fog results when moist air moved across a cold surface. When moving across a cold surface, the air is cooled to its dew point.
The results of the surface contamination are used to document the site's health and cleanliness. They can also determine if safety regulations are working correctly or needs modified.
No, they grow within agar and have an oval shape.
EVAPORATIONtakes place at the surface of liquid.heating not requiredtakes place at all temperature.results in cooling since heat is absorbed from the surface.BOILINGtakes place throughout the liquid.requires heating.takes place at different temperature.doesnot results in cooling.
Diffusion occurs throughout the solution and not just at the surface. Just the opposite of this is the activity of enzymes. Dropping colored dye in water will diffuse evenly through the solution.