What is negative control vs positive control? A negative control is a control group in an experiment that uses a treatment that isn’t expected to produce results. A positive control is a control group in an experiment that uses a treatment that is known to produce results. Who has the best drinking water in the […]
How does the rain shadow effect affect climate?
How does the rain shadow effect affect climate? The mountains block most precipitation from falling in the valley, creating a dry climate where few plants grow. A rain shadow is a patch of land that has been forced to become a desert because mountain ranges blocked all plant-growing, rainy weather. On one side of the […]
How many amps are in 220 volts?
What is the attraction between particles in a solid?
What is the attraction between particles in a solid? Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. Their vibration is related to their kinetic energy. In the solid the particles vibrate in place. Are solid particles in motion? Particles […]
What do bacteria use for movement?
What do bacteria use for movement? flagellum What are two foods that bacteria help make? Bacteria are used to make food, such as cheese and yogurt, and they can also help us break down harmful substances in the environment. Scientists created a type of bacteria that could gobble up oil from oil spills. What are […]
How many people die on roller coasters annually?
How many people die on roller coasters annually? four deaths Are roller coasters bad for you? Findings from a 2009 study suggest that head motions during roller coaster rides typically confer a very low risk for traumatic brain injury (TBI), and a 2017 study found that brain strain rates during roller coaster rides were similar […]
Why did they ban incandescent bulbs?
Why did they ban incandescent bulbs? But the US energy department said banning incandescent bulbs would be bad for consumers because of the higher cost of more efficient bulbs. The Department of Energy said it had withdrawn the ban because it was a misinterpretation of the 2007 Energy Independence and Security Act. Are CFLs being […]
What is the other name of residual soil?
What is the other name of residual soil? the soil that is remaining after the soluble elements have been dissolved. synonyms: residual clay. see more. type of: dirt, soil. What is residual soil give an example? If the products of rock weathering are still present at the place of origin, the soil is called Residual […]
What is the greatest distraction when driving?
What is the greatest distraction when driving? Talking and texting. People who use their cell phones to talk or text while driving are by far the most common reason for distracted driving accidents. In fact, the National Safety Council estimates that 26% of all car crashes involve cell phones. What are 5 10 things that […]
Donde se mueve mas rapido el sonido?
¿Dónde se mueve más rápido el sonido? El sonido se propaga a diferentes velocidades en medios de distinta densidad. En general, se propaga a mayor velocidad en líquidos y sólidos que en gases (como el aire). La velocidad de propagación del sonido es, por ejemplo, de unos 1.440 m/s en el agua y de unos […]