Science

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.


Subcategories

Astronomy Biology Chemistry Earth Sciences Energy Geography Inventions Math and Arithmetic Physics Science Experiments Social Sciences Space Travel and Exploration Units of Measure

All unanswered questions |New questions | New answers

  • How fast does tap water freeze?
    According to the ideal gas law (which is modified by Van der Walls equation), it depends on the temperature, pressure, and volume...
  • What is impurity elements?
    c1+
  • Types of contact force?
    frictional force-is a force exerted by a surface as an object moves across is or makes an effort to move across it. tension...
  • Can gases be heated?
    Yes, gases can be heated. They try to expand if not contained, thus becoming less dense and causing convection currents. At a...
  • How can you identify pseudoscience?
    one can be considered a pseudoscience if it did not undergone the scientific process. For example, making a conclusion before...
  • What space will the helium balloon occupy if it bursts in a closed room?
    the whole room
  • Are earthquakes related to coronal mass ejections?
    No. There are dozens of earthquakes each and every day, and they don't appear to be related at all to the weather in space.
  • What occurs when water vapor changes to liquid wate?
    Its a change in energy primarily. Water vapor loses energy and then becomes liquid. The energy it loses generally is heat. For...
  • Why is science the best subject?
    it teaches the basics of life such as human body, the law of physics, etc.
  • Friction that is between stationary surfaces is called?
    Static friction.
  • What is the reactance theory?
    In electrical circuits, reactance is roughly the equivalent in AC circuits to what resistance is in DC circuits. But the...
  • What kind of energy does coffee have?
    Caffeine ..unless your asking what FORM of energy coffee has, which would be Thermal Energy because the molecules in the coffee...
  • What is a organised journey called?
    An expedition.
  • What does homeo stasis mean?
    it is the mattter of operation
  • What are advantages of global positioning systems?
    Advantages of GPSDepending on what you are using it for, and the rating of your system it could be invaluable.I have a hand held...
  • How do they make drink water filters?
    Drinking water is also known as potable water. Charcoal is the primary substance used in conventional drinking or potable water...
  • Is the sky really blue because it reflects the color of the ocean?
    No. The physics is based in the way light is scattered in the air, and it is discussed in the question, "Why is the sky blue?"...
  • How do you make glass?
    Glass Ingredient - I believe the main ingredent is quartz. Answer: No, its not made out of quartz at all; it is made from melting...
  • What affects the rate of a chemical reaction?
    There is a near-infinite list of what might effect reaction rates. Major, common factors are Temperature, Pressure, Solvent...
  • What is Louis Pasteur wife's last name?
    A gas constitutes molecules of a element/compound whereas Plasma consists of the Ionized (Charged) species of the elements. A gas...
  • What is artificial inoculation?
    Artificial inoculation is a technique to induce a fungi or disease into a living object, it is normally for identification of...
  • Can a physical change happen without a chemical change?
    Yes- ice can melt for example.
  • Did the neanderthals walk upright?
    Yes.
  • How does saltwater intrusion happen?
    Salt water can invade a fresh water aquifer, if the extraction rate of the fresh water is too great.
  • Who to work out the mechanical advantage of a multiple pulleys?
    The pully man should be able to work that out. All I know is that the harder you pull, the... yeah, something like that.
  • How to break rock in different ways?
    chop it with a knife or hit it with a hammer
  • What the ingredients of a vanilla candle?
    A vanilla candle has paraffin wax, a cotton wick (a metal base as a hold down for the wick is sometimes used) and Vanilla oil,...
  • What day did Hannah Hajek die?
    I don't know the DAY but the date was October 1944.
  • What are some facts about levers?
    A see-saw provides good fun. Although you might not think so your knives, forks and spoons are levers. You have the brake and...
  • What drug smells like acid?
    pot... or your mom
  • Can theories be proven by observation alone?
    The most fundamental theories about the nature of things cannot be proven at all, let alone by observation.
  • What does the term nuclear winter refer to?
    Nuclear winter refers to a long-term cooling of the Earth's climate following a massive nuclear war. Nuclear weapons, as we all...
  • Does the size of a ball effect how high it bounces?
    Not to any appreciable extent. Bounce is caused by the elasticity of the material comprising the ball and the surface on which it...
  • Has it been scientifically proven that ghosts exist?
    The short answer is that the Scientific community is on the fence when it comes to any Paranormal object, be it a ghost or...
  • Really is an iceberg a mineral?
    Steel, brass, bronze
  • What are 5 important lab safety rules?
    Sorry, but i remembered just three of them, and these are the three: 1. Wear proper laboratory dress 2. Do not touch things that...
  • Efficiency of half wave rectifier?
    The ratio of d.c power output to the applied input a.c power is known as rectifier efficiency .
  • What are 3 examples of protists?
    There are Euglena,volvox, Amoebas, and Paramecium
  • Where are the electrical charges in a atom?
    An atom is made up of protons, neutrons, and electrons. Protons and neutrons form the nucleus of the atom. Electrons orbit the...
  • What would happen if friction vanishes?
    Suppose friction vanished now: 1.plants (farmers are growing) and trees near your house will blow away due to winds. 2. ocean...
  • How is chemistry related to basketball?
    The science of chemistry delivers the clothing the players wear, and the ball itself. The backboards in high school gyms and in...
  • Is groundnut a fruit?
    no
  • How was potash formed?
    Potash, or carbonate of potash, is in fact a mixture of potassium salt with impure form of potassium carbonate (K2CO3). In other...
  • Is calcium nitrite a solid liquid or gas?
    Calcium nitrate is a solid at room temperature.
  • Is rusting of an iron fence physical change?
    No, rusting is a chemical change.
  • When was sand discovered?
    When man came home from the beach and took off his shoes and there was dirt in there!
  • What is indelible lnk?
    It could be explained as permanent or lasting ink, in other words: ink that cannot be rubbed out, will not fade, and will not run...
  • Does thermal radiation means heat radiation?
    THES RES Yes
  • What biome does conifers grow?
    decidouos forest
  • Will water evaporate from an unopened water bottle?
    Technically yes. But the amount that can escape via the plastic and the seal is so small that the practical answer is no.
  • How is plexiglass made?
    melt calendering
  • How does inertial navigation function?
    Inertial navigation tracks the position of an object by measuring and comparing the distance it travels with the accelerations in...
  • What was Charles Darwin's first piece of evidence?
    On his travels he found that many species of animals were similar, but different even though they were not in the same...
  • What is the weight of one gallon of air?
    Air at sea level weighs about 1.2 kg per cubic meter. You can find that using the ideal gas law pV=mRT where p is...
  • Why does ice float in water?
    Ice is less dense than liquid water Water is a member of a very exclusive group of substances that are less dense as a solid than...
  • What is kabbalah?
    AnswerMystical teachings that deal with the ideas of creation and concepts of a spiritual nature. Broadly speaking, the Jewish...
  • What is abortive transduction?
    what is abortive transduction? what is abortive transduction?
  • What makes magnesium a good choice for alloys?
    because it is less reactive as compared to iron,lithium,sodium and potassium
  • How can an antacid reduce stomach discomfort?
    Antacids are alkali's that neutralise the excess stomach acid in a chemical reaction. As a result of the neutralisation gas is...
  • Is ethylene saturated?
    Ethene - to use the correct IUPAC name - is an alkene, with a double bond. This means that it is unsaturated.
  • Transfer RNA what is the function?
    During the process of transcription, mRNA or messenger RNA is formed. This is the first stage of protein synthesis. tRNA or...
  • What is ontogeny plant?
    they call it plant ontogeny or heteroblasty Using an experimental eucalypt forest of known pedigree and laboratory feeding...
  • Is bromide diatomic?
    Bromine is indeed a diatomic element, but bromide is the ion, so it can be made of just one charged atom.
  • Name one scientific contribution of Isaac Newton?
    How about three. His three laws of motion. (Taken from Wikipedia) First Law: Every body remains in a state of rest or uniform...
  • What label is used for work in physics?
    I've always just used W for work and I'm pretty sure that's the accepted standard. The units are J (joules) but sometimes it's...
  • What is hasty oversimplification?
    what is oversimplification/ hasty generalization
  • Why was Urey-Miller experiment so important?
    He did a lap experiment that ___________ to help man kind.
  • Which best describes technology?
    The creative use of science to solve problems
  • What kind of science is anatomy?
    anatomy is the structure of animals or plants
  • How do you work out upthrust?
    it equals weight, which is density*volume*9.81
  • What is a rag dampened with solvent called?
    a solvent cloth
  • What is the setting to fireproof?
    That depends on the thing you want to make fireproof. Usually things come already fireproof, if they are meant to be. Most times...
  • How many colors are in a rainbow?
    The main colors are: Red Orange Yellow Green Blue or Indigo Violet (not purple ) There are seven colors in the rainbow and...
  • What is data saturation?
    Data saturation is the situation in which the data has been heard before. For example, a reseacher might interview 23 people that...
  • How do tsunamis effect the biosphere?
    Wow! That is a very interesting question, to which the answer may never be fully known.Since the biosphere, essentially, is the...
  • Example of responding variable?
    I'll just give you a variable..VariablesPlant APlant BAmount of water1 liter1 literAmount of sunlightExposedExposedKind of...
  • 2 types of microscopes?
    The two main types of microscopes are light microscopes and electron microscopes.
  • How long is the Pacific Ocean in miles?
    11000 miles
  • Proficient in a sentence?
    The learner driver was classed as proficient in driving their car
  • Commonly used vectors include what?
    it ain't A stupid D.) All the above
  • Examples of reversible physical change?
    examples of physical change are ice,water,chocolate,liquid,
  • How many drops of salt water fit on a penny?
    It varies each time the experiment is done, but when I did it the average amount of salt water that fit on a penny, heads side...
  • Is grass made of cells?
    yes
  • When you put 2 beakers of water on a balance and stick your finger in one of them why does the beaker go down?
    You are adding weight and mass when you put your finger in the water.
  • Can you change the sound waves into electric energy?
    Sound wave is essentially a pressure wave. What converts pressure wave to electricity is a piezoelectric element, basically a...
  • What is the thinnest of the earths spheres?
    Biosphere
  • Does an apple off the tree have cells?
    Yes. An apple is made of cells.
  • What is measured in hoppersfeet?
    Rear Admiral Grace Hopper was a pioneer in the computer industry. In her talks, she often would illustrate the speed of...
  • What does evaporation do in the water cycle?
    Evaporation: The sun heats up the water in oceans and lakes and the water turns to vapor and floats up in the sky. When a bunch...
  • What is this medicine use for?
    medicine is used to cure people and animals from sickness that can cause them to die...
  • Parts of adenosine diphosphate?
    ADP consists of a ribose sugar with an adenine ring and the phosphate groups attached to it.
  • How many inches is equal to 45 mm?
    4.5 centimeters http://www.tech-faq.com/convert-mm-to-inches.shtml
  • Why are copper wires used in connecting wires?
    copper have a lower resistance to electricity than most other conductors. although silver would function better, it is way too...
  • What part of the brain absorbs cerebral spinal fluid?
    It is reabsorbed through arachnoid granulations and goes into the venous sinus system.
  • How velocity different from speed?
    Velocity is acceleration and direction put together. The velocity of something changes if either acceleration or direction...
  • What are the elements in fluorite?
    From a mineralogical perspective, fluorite is an evaporite mineral that contains one calcium ion and two fluorine ions. Calcium...
  • Why does silver dull?
    It's called oxidation. Rust if it were on steel. Oxygen in the air combines with the silver and causes it to darken.
  • How can science change?
    to get more nolege about science we could be wrong so you could go back and change it