Which frequency of light travels the fastest? Violet travels the slowest so it is on the bottom and red travels the fastest so is on the top. This is because what is called the index of refraction, (the ratio of the speed of light in a vacuum to the speed of light in a material), […]
Do other solar systems look like ours?
Do other solar systems look like ours? Scientists have captured the first direct image of a solar system that closely resembles our own. The new image is a family portrait of sorts, showing two giant exoplanets orbiting a young, sun-like star, roughly 300 light years away. What is the closest solar system to ours? Alpha […]
Is human hierarchy natural?
Is human hierarchy natural? Human beings are intrinsically hierarchical. This is a natural consequence of the family/tribe in that adults have the responsibility to raise/teach children which is a hierarchical activity. Is there a female hierarchy? In a report published in the January issue of the Personality and Social Psychology Bulletin, Mast, a psychologist at […]
What are observations in an experiment?
What are observations in an experiment? Observation consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments. Any data recorded during an experiment can be called an observation. What are the observation skills? Observation skills refer to the ability to use all five of your senses […]
What does Q mL mean?
What does Q mL mean? heat energy Is Melting copper exothermic or endothermic? No, heat has to be added to make copper melt. So that’s called an endothermic process. When copper freezes it releases heat, so that’s called exothermic. Is cooking an egg exothermic? Cooking an egg is an endothermic process because added energy makes […]
What is the viscosity of glycerin?
What is the viscosity of glycerin? µ, kg / m · s. Glycerin: -20°C. 134.0. Does temperature affect viscosity? The gas viscosity will increase with temperature. According to the kinetic theory of gases, viscosity should be proportional to the square root of the absolute temperature, in practice, it increases more rapidly. The result is that […]
What is a disadvantage of oil?
What is a disadvantage of oil? Burning oil produces carbon dioxide gas. Burning oil can pollute the air. Much of our oil has to be imported and it is becoming more and more expensive as reserves reduce and imports increase. Producing electricity from crude oil is expensive compared to other fossil fuels such as coal […]
Why does glucose dissolve in water?
Why does glucose dissolve in water? Glucose is small (6 carbons) and dissolves easily in water because it has a number of polar OH groups attached to its carbons. To these cells, glucose is fuel and raw material for making other biological molecules. What happens when glucose dissolves in water? The sugar we use to […]
What is 2000 kg on Earth?
What is 2000 kg on Earth? MASS-WEIGHT Units Conversion kilograms to earth-mass Kilograms to Earth Mass (table conversion) 2000 kg = 3.3467202141901E-22 M∅ 4000 kg = 6.6934404283802E-22 M∅ 5000 kg = 8.3668005354752E-22 M∅ 7500 kg = 1.2550200803213E-21 M∅ What is the weight of an elephant in tons? African elephants are the largest of all land […]
What is another name for cellulose?
What is another name for cellulose? cellulose ester, fiber, paper, cellulosic, fibre. What can digest cellulose? Undigestible cellulose is the fiber which aids in the smooth working of the intestinal tract. Animals such as cows, horses, sheep, goats, and termites have symbiotic bacteria in the intestinal tract. These symbiotic bacteria possess the necessary enzymes to […]