The tiniest channels are called ____________________
Fill in the blank(s) with correct word
rills
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Large bodies of air that share similar moisture and temperature characteristics are known as ________
Fill in the blank(s) with the appropriate word(s).
Present the typical conditions and activities associated with both a cold front and with a warm front
What will be an ideal response?
How might you distinguish a sodium-vapor street lamp from a mercury-vapor street lamp?
A) use binoculars to look for printing adjacent to the bulb B) look at the street lamps through a spectroscope and match their spectral patterns to their respective atomic spectra C) ask your local utility company to identify these lamps for you D) The shadows cast from a sodium-vapor street lamp tend to be more diffuse around the edges.
A skillet is lined with a thin layer of cooking oil followed by a layer of unpopped popcorn kernels. Upon heating the kernels, all pop thereby escaping the skillet. Which of the following physical and/or chemical changes occurred?
A. The water within each kernel is heated to the point that it would turn into water vapor as the kernels popped (physical change). B. The starches within the kernels are cooked by the high temperatures (chemical change). C. Both A and B occur. D. Physical and chemical changes cannot occur without a real chemical reaction taking place.