What happens to sweat glands when you are hot? When we get too hot: Sweat glands in the skin release more sweat. The sweat evaporates , removing heat energy from the skin. Blood vessels leading to the skin capillaries become wider – they dilate – allowing more blood to flow through the skin, and more […]

How do you answer a true or false question? 5 Quick Tips for Answering True-or-False Test Questions Read the questions carefully. In true-or-false test questions, it’s not uncommon to have just one word make the difference as to whether the statement is correct or not. Dissect the statement word-by-word and phrase-by-phrase. Look for inflexible words. […]

What is the possible blood type of the offspring if the father has type A blood and the mother has type O blood? Blood Type Look-Up Tables Mother’s Blood Type Possible Mother’s Genotype Possible Father’s Genotype O OO AA, AO O OO AB O OO BB, BO O OO OO How can two parents with […]

Which amendment is repeal of Prohibition? 21st Amendment Why was the 18th Amendment repealed by the 21st Amendment? On December 5, 1933, the 21st Amendment to the United States Constitution was passed, repealing the 18th Amendment and ending the prohibition of alcohol in America. Therefore, support faltered in the early 1930’s and Prohibition became the […]

What process turns rock into magma? Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals. Or, igneous rock can form above ground, where the magma cools quickly. When it pours out on Earth’s surface, magma is called lava. Does rock mean diamond? When used as nouns, […]

What type of potential energy is stored in biofuel? chemical energy What is Biopower Energy? Biopower technologies convert renewable biomass fuels into heat and electricity using processes similar to those used with fossil fuels. There are three ways to release the energy stored in biomass to produce biopower: burning, bacterial decay, and conversion to gas/liquid […]

Why is maltose a disaccharide? Maltose, another common disaccharide, is condensed from two glucose molecules. The dehydration reaction that bonds monosaccharides into disaccharides (and also bonds monosaccharides into more complex polysaccharides) forms what are called glycosidic bonds. Is maltose a monosaccharide disaccharide or polysaccharide? Glucose, galactose, and fructose are common monosaccharides, whereas common disaccharides include […]

Do cable splitters weaken signal? A cable splitter WILL result in a degradation of the signal, even if the other ports are unused. One thing you can do is to add terminator caps to each unused port. They are supposed to reduce the degradation. Note that cheaper cable splitters will actually have a different amount […]

Is burning coal a chemical energy? When coal is burned, some of the energy is changed to heat. In all of the steps where mechanical energy is used, some of the energy is always changed to heat….Introduction. Step Types of Energy Used 3 The burning coal heats water in a boiler, creating steam. Chemical energy, […]

What type of energy is thermal energy? Thermal energy comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature. Heat energy is another name for thermal energy. Kinetic energy is the energy of a moving object. As thermal energy comes from moving particles, it is a form of […]