Which property is most useful in mineral identification? Hardness Which property is not commonly used to identify minerals? Answer: Mass and size are properties not commonly used to identify minerals. What is the softest mineral? Talc What are minerals and their types? Silicate minerals comprise approximately 90% of the Earth’s crust. Other important mineral groups […]
Why is incomplete combustion bad?
Why is incomplete combustion bad? Incomplete combustion occurs when the supply of air or oxygen is poor. Water is still produced, but carbon monoxide and carbon are produced instead of carbon dioxide. The carbon is released as soot . Carbon monoxide is a poisonous gas, which is one reason why complete combustion is preferred to […]
What is normal oxygen level at high altitude?
What is normal oxygen level at high altitude? Up in Summit, oxygen saturation is around 92%. Visitors coming to Summit from sea level might see their oxygen saturation drop to around 88% or lower before reaching levels typical at this elevation. At what height is it hard to breathe? An elevation of about 20,000 feet […]
What are the 3 ways machines make work easier?
What are the 3 ways machines make work easier? Background Information. There are three ways simple machines make work easier: by increasing the distance through which force is applied, by changing the direction of applied force, or by multiplying force of speed of the energy applied. Why is no machine 100 efficient? A machine cannot […]
Why does my foot hurt when I kick a soccer ball?
Why does my foot hurt when I kick a soccer ball? There are a number of reasons which have been mentioned (e.g. air temperature affecting ball stiffness, kicking technique, possible injury). Another reason may be that your anatomy hasn’t developed to sustain kicking a ball. Think about how kickboxers can block with their shins. How […]
Did Nikola Tesla died broke?
Did Nikola Tesla died broke? Tesla died a broke humanitarian. “Tesla did what he did for the betterment of humanity, to help people have a better quality of life,” said Alcorn. “He never seemed to be interested in monetary gain, although a possible downside of that was he never seemed to have enough money to […]
Why is coffee so addictive?
Why is coffee so addictive? How Caffeine Affects the Brain. Caffeine is addictive because of the way that the drug affects the human brain and produces the alert feeling that people crave. Soon after caffeine is consumed, it’s absorbed through the small intestine and dissolved into the bloodstream. Is Quitting caffeine good? 2. You’ll sleep […]
Do igneous rocks come in different colors?
Do igneous rocks come in different colors? Another characteristic used to help identify igneous rocks is its color. Igneous rocks are classified based on only 4 colors: mafic, ultramafic, felsic, and intermediate. Very light in color, a bunch of quartz, potassium feldspar, very few dark minerals found. These are your white and pink colored igneous […]
How fast can a human move?
How fast can a human move? 28Â mphMaximum, Running How fast can a human react? about 250 milliseconds What is the average reaction time for a 13 year old? Both are near the average reaction time for humans which 0.25 seconds. According to our results, children have an average reaction time of 0.25673 seconds and adults […]
How will the player stop sliding?
How will the player stop sliding? Friction opposes the motion of two objects when they come in contact with each other. In this case friction between the players’ shoes and the basketball court keep the players from sliding. What material causes the most friction? Rougher surfaces have more friction between them than smoother surfaces. That’s […]