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Science

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The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.

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Sunspot 'cycles' are at approximately 11-year intervals.
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The difference - is in the proportion of the gasses present. The air we breathe in contains about 20% Oxygen. What we breathe out has about 16% oxygen and high levels of carbon dioxide.
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Simply because glass is tougher than plastic - and can be endlessly recycled. Many plastics deteriorate if they're recycled too many times.
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No. Caterpillars breathe through spiracles.
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Only in the sense that it prevents infection.
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The blood accumulates waste products - homeostasis is disrupted (you feel tired and not-well) and eventually you die.
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No. The planets of the outer solar system are spaced at much greater distances from each other than those of the inner solar system. Additionally, how far any two planets are from one another will depends on where each planet is in its orbit, as every planet has a different orbital period.
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Gold contains metallic bonds.
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If a single lens forms a virtual image of an object, then the lens could be either a diverging or a converging lens. Which statement about a single thin lens is correct A diverging lens always produces a virtual upright image.
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You're thinking of electrons - but that's a very old (and erroneous) description.
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Less heat is carried away from the feet.
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Bread crumbs.
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Tomato sauce.
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As there has never been a world step ladder census, we do not know for certain. But we can safely say there are millions in existence.
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Gas exchange.
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It's approximately equal to the pressure of a column of water equal to your height. It must be high enough to overcome friction of the capillary systems (plus a bit more for the other vesicles) AND it must be high enough to lift blood up to your head (when standing). It comes out to about 1/6 th of …
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Oral pharynx, trachea, lungs. Then you have the chest wall & the diaphragm.
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pericardium
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It's a (loose) combination of cells and tissues that defend against foreign materials in your body. The biggest component is your white cells.
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It is usually referred to as 'peer review'.
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Because less neural processing is required and the nerve "circuitry" is much simpler for auditory input than for visual input.
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No. They will reach the same temperature.
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Because both systems will modify themselves to accommodate the subjects life style.
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The rock melts to form magma.
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Because carbon can bind to itself (in multiple ways).
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Apply an external force.
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material scientists are scientists who work with different types of materials to cate new ones
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Its a delusion of science.
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Yes.
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By applying a force in the relevant direction against the object.
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In air through the passageways to the lungs, by diffusion through the alveoli into the blood, by diffusion out of the blood into the cells and through the cells into the mitochondria - where it ceases to exist as oxygen and becomes water.
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NO. you can progress by trial and error (which was the chief mode up to about 200 years ago), but science does tend to speed things up.
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Outside of helping you understand what you're doing and why, none.
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Yes.
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No, its an approximation.
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The sun is a star - so it's the same as any star its size.
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Uracil replaces thiamine in RNA.
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All neutral sodium atoms have 11 electrons, regardless of the isotope.
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Its conserved during the combustion of anything - the mass of the products is always equal to the mass of the materials that react.
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The Celsius equivalent is... 100 C
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Storms pose a hazard to ships and boats, so weather forecasts are necessary for them to avoid dangerous weather. Many ships have been sunk by storms.
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Except for the audio (sounds), yes.
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In the Bhagavad Gita Lord Krishna reveals to Arjuna his Viraat Roop (the full or universal form of God).
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Yes. Mosses were around long before the dinosaurs were.
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Darwin especially wanted to understand the different adaptations of organisms on the Galápagos Islands. Darwin reasoned that plants or animals that arrived on the Galápagos Islands faced conditions that were different from those on the mainland. Perhaps, Darwin hypothesized, the species gradually …
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Quite a bit - remember it only take 2 nerve cells to reach from the brain to the foot.
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It is: 1.56*10^-2 in scientific notation
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Don't smoke or drink alcohol, exercise, keep your weight in the normal range.
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1) they're not alive - so they don't live. 2) they exist for many millions of years on Earth - on the moon it's billions of years.
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Yes, but only until the solution saturates.
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No. The petals of a flower are neither male nor female.
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Yes & no. If you mean any amount of dissolving (of things like gold etc.) THEN yes. But in the normal use of the terms, then no - only salts and polar substances dissolve readily.
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Dust particles are tiny particles of solid material.
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Yes. (As the density falls, it expands.)
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No.
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Water and bread do not combine to make mold. Mold is a living organism that grows from molt spores, which can be found in most environments. Mold needs moisture and food to grow, and the starch in bread is an excellent food source.
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It is: 1.5*10^5 in scientific notation
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The country that the U.S touches the north is, Mexico
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Science is used to analyse samples from the area of interest to the mining company. It's no good mining for a specific mineral - if there's none in the target area ! Chemical analysis of the samples will determine what (if any) useful minerals are present.
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Your blood ! Blood flows to even the smallest capillaries - taking with it oxygen and energy - and taking away waste products.
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Nobody 'invented' decomposition ! ALL living matter eventually decomposes - as it has done since the universe was formed !
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Gases, All small molecules (food, structural materials, minerals); hormones, and antibodies.
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Generally it evaporates.
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To sense electrical fields.
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To keep shorts from happening.
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Some hydrocarbons are poisons, and some aren't. Note that all your body fat is a hydrocarbon.
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Part of the earth's internal heat comes from the gravitational compression from forming the planet, but most comes from radioactivity.
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Many didn't - or counted years from the reign of some king, or counted months as years (as in the Bible).
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The question has already been answered earlier by The WikiAnswers Community. The main reason is to provide the customer with a variety of options in terms of strength, color and comfort. The answer that was submitted gave a very nice explanation: "Each of the fiber has it's own properties - both (i…
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Control in science is something that can be used for comparison to determine the magnitude of an experimental effect. For example in a control group either nothing is done or a fake version of the experiment is performed to determine a "baseline". The results of the control experiment and the real e…
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There is no definition - what's called a "law" is a simplified version of some theory.
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For the sun its a year, for the moon its a month.
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If the mud stays dissolved, yes. Some mud can be "suspended" in the water (as a mixture) and can be filtered out. The clear brown color of muddy water is caused by dissolved minerals from the mud.
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Gems are made of a variety of minerals. Here are a few examples. Diamond: native element: carbon Ruby/Sapphire: oxide: corundum (aluminum oxide, Al2O3) Emerald: Cyclosilicate: beryl (beryllium aluminum silicate, Be3Al2(SiO3)6) Amethyst: oxide/tectosilicate (quartz, SiO2)
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No, but they tried. First is hard to define, but I like William of Ockham (around 1300)
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An atom can not be described in biological terms.
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Depends on the temperature.
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No. A meteor is an object from space that is falling through the atmosphere. A meteorite is a rock from space that has hit the ground. Coal is neither. It forms underground form dead plant matter.
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Periwinkle leaf is a simple leaf. A simple leaf has a single leaf blade that is not divided into small leaflets. The simple leaf may have incisions, but these incisions are not deep enough to divide the leaf into leaflets.
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It applies to both.
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Heavy metals - mainly iron.
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Most of it is untestable - so its just opinion.
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